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The Knight

External Size:

8.5″ Length x 7.0″ Girth


The Knight is a wearable penis sleeve that is approximately 8.5-inch penis with a girth of about 7.0 inches. It is created with curvature to add extra pleasure to sexual experiences for men living with ED.  You can customize the length for a perfect fit with an Adjustable Inner Rod & you can customize the girth with a Girth Enhancer.

Girth Enhancer Kit: Each kit comes with four (4) uniquely sized premium soft rollable silicone tubes. Each tube can help increase the girth of your penis to fit into a model with a larger hole size. The tubes can be rolled onto the penis, similar to a condom.  For instance, if your penis girth measurement is 3.5″ and your preferred model has a 4.5″ girth hole, you can roll the soft appropriate tube(s) onto your penis. The enhancer will allow you to insert yourself into the sleeve for a snug fit (some lubrication may be necessary).. Individual Girth Enhancer tubes are sold separately and are found under accessories.

A detailed YouTube video can be found here: "Using an enhancer"

Adjustable Inner Rod: The insertable silicone rod can act as an erection aid to fill the air gap between the head of your penis and the end of the sleeve.



    • Extra-large length and girth. Its length is about 8.5 inches and the girth is ~7.0 inches.
    • Curved Erection. The realistic penis sleeve comes with a curved erection to help stimulate and strengthen intercourse experiences.
    • Inner rod add-on. If there is air space in the inner hole, RX Sleeve offers an inner rod to help fill the gap for full functionality.
    • Choice of firmness. Our skin-safe silicone material comes with different firmness options for your customization.
    • Paracord harness strap.  The ~8.5-inch penis sleeve is equipped with a paracord harness strap, The Grip, to ensure placement security during sexual encounters.


The Knight ~8.5-inch penis sleeve is created with a natural, life-like look and feel so that men experiencing ED can have a normal sexual experience with their partner. The realistic penis comes in three different color shades, Cocoa, Vanilla, and Natural.

RX Sleeve is a company that focuses on men who struggle with the loss of sexual intimacy due to ED. We understand the pain you have gone through and are here to help customize and build a new penis so that may can enjoy sexual pleasures with your partner again.

Our goal is to promote revitalized sex for both people. Therefore, we offer customization on all penis sleeves to fit the needs of everyone.

Use a flexible tape measure to find your right fit, and add The Knight ~8.5-inch penis sleeve to your shopping cart. Don’t let ED continue to dampen your sexual experiences!

**Note: all sizes may vary slightly.
**Sold as a novelty item.


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