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Product Details
A penis sleeve fits and performs best when its inner hole is completely filled. If your erection is not full, or your natural length is shorter than the sleeve's inner depth, an air gap is left between the head of your penis and the end of the sleeve. That gap can make the tip of the sleeve flex or fold during penetration. A penis sleeve insert rod fills the gap from the inside, acting as an erection aid so your sleeve stays firm and full through intercourse.
Rod inserts are $40 and come in seven girth hole sizes, from 3.5 inches to 6 inches, sized to match the inner hole of your RX Sleeve.
Select your sleeve's girth hole size above to order.
The insert is a solid silicone rod that sits inside your sleeve's inner hole, filling the space between the head of your penis and the end of the sleeve. Your penis rests against the rod instead of empty air, so pressure transfers through the full length of the sleeve during penetration.
Some customers search for this product as a penis extender rod. The rod does not stretch or lengthen the penis. It fills the unused length inside the sleeve so the sleeve can perform at its full size, even on days when your erection is partial or absent.
If your sleeve still will not stay in place with a rod insert, contact us. A custom penis sleeve with a shallower inner hole may be the better fit.
Order the size that matches your sleeve's girth hole, not your body measurements. Every RX Sleeve model is made with a specific inner hole girth, and rod inserts come in all seven sizes: 3.5", 3.75", 4", 4.5", 5", 5.5", and 6". If you are choosing a sleeve and a rod insert together, our guide on how to choose a wearable penis sleeve walks through the measurements first.
Place the rod into the end of the sleeve's inner hole before you put the sleeve on. A small amount of water-based penis sleeve lube makes the rod easier to seat and remove. From there, wear the sleeve as you normally would; our article on how to use a penis sleeve covers the full routine, including The Grip™ harness that holds every RX Sleeve in place.
Each accessory solves a different fit problem. Match the accessory to the gap you are trying to fill.
| Fit problem | Accessory |
| Air gap in length, or erection not full | Rod insert (this page), $40 |
| Want one rod trimmed to your exact length | Adjustable Inner Rod, $40 |
| Inner hole girth is wider than your natural girth | Girth Enhancer Kit, four soft rollable silicone tubes, $20 |
| Sleeve walls need firmer internal support to prevent buckling | Girth Stiffener, firm silicone tube, $25 |
RX Sleeve has been handcrafting realistic penis sleeves since 2004 and is an FDA-listed company. Like our sleeves, rod inserts are made exclusively from certified skin-safe platinum silicone, verified by an independent lab to the OECD TG 439 standard. The material is non-porous, so it does not absorb fluids, and it is safe for you and your partner.
Our team has helped thousands of men find the right fit. Call +1 (407) 960-0135 or email sales@rxsleeve.com, Monday through Friday, 9:00 AM to 5:00 PM PST, and we will recommend the right size for your sleeve. Ready to order? Choose your girth hole size and add to cart.
You are not alone if you are a male experiencing a condition that negatively affects your sex drive or penis function. RX Sleeve provides realistic penis sleeves for any male struggling with erectile dysfunction or other conditions that negatively impact their sex life.
Our realistic penis sleeves are handmade from a non-hazardous, premium silicone that can be customized to your specific needs.
If you are interested in a customized penis sleeve, please email our team of experts at hello@rxsleeve.com for more information.
Our Patented Harness System delivers durable, comfortable, and easy-to-wear penis sleeves that are also easy to wear. Simply stretch the silicone loop open and carefully slide testicles into the hole, and then slide your penis into the shaft’s inner hole.
Yes, lubricant can be used to slide on your sleeve and to enhance intercourse while wearing the sleeve.
Yes. Wearing a condom will not affect the sleeve in any way.
When selecting the EZ Sleeve that’s right for you, you’ll be given the option between three different colors (Caramel, Coco, and Vanilla). Additionally, you’ll be asked to choose the firmness of your material depending on your preference.
The RX Sleeve is certified skin safe silicone, which is safe for both you and your partner.
RX Sleeve will satisfy your partner and help you regain that all-important sense of closeness. Depending on the type of medical condition you may have, the sensation level varies. Many customers are able to feel a stimulation, however, it depends on many variables such as post-surgery, injections, and blood flow.
You need a rod insert if there is an air gap between the head of your penis and the end of your sleeve's inner hole. This happens when your erection is not full or your natural length is shorter than the sleeve's inner depth. If your penis fills the inner hole completely, you do not need one.
No. The rod insert fills the space your erection does not, giving the sleeve internal structure during penetration. Many customers pair a rod insert with a Firm material sleeve so performance does not depend on their natural erection.
Order the rod insert that matches your sleeve's girth hole size, not your body measurements. Rod inserts come in seven sizes from 3.5 to 6 inches. If you are not sure which inner hole your sleeve has, email sales@rxsleeve.com with your model name and we will confirm the right size.
A rod insert fills unused length inside the sleeve. The Girth Enhancer Kit fills unused girth. If the sleeve's inner hole is deeper than your length, use a rod insert; if it is wider than your girth, use the enhancer tubes. Some men use both.
Both fill the air gap at the end of your sleeve's inner hole. Rod inserts come pre-sized to match your sleeve's girth hole, while the Adjustable Inner Rod is a single rod you adjust to your exact length. If you know your sleeve's girth hole size, a pre-sized rod insert is the simpler choice.
Apply a small amount of water-based lubricant to the rod before seating it, and it will slide back out easily after use. If a rod ever feels stuck, contact us at sales@rxsleeve.com and we will walk you through removing it without damaging your sleeve.
Yes. RX Sleeve products can be purchased with pre-tax FSA, HRA, or HSA funds as qualified medical expenses. Details are on our FSA/HSA page.
RX Sleeve may offer functional support for men who experience erectile dysfunction, partial erections, or have reduced rigidity due to age, medical conditions, or post-surgical recovery. Although known primarily as a penis sleeve, some users incorporate RX Sleeve as part of their sexual health rehabilitation plan, sometimes under the guidance of a healthcare professional.
