Model F Realistic Silicone Sheath Black Size 1
$59.99
Add length and girth with the Model F realistic silicone sheath — a body-safe FLEXISKIN™ sleeve designed to enhance intimacy for couples seeking a fuller, more connected experience.
| Weight | 0.0 oz |
|---|---|
| Color: | Black |
| Audience | Couples |
| Features | Latex Free, Multi-Function, Penis Extension, Phthalate Free, Realistic Feel |
| Size: | Small |
| Material | Silicone |
In stock
A realistic silicone penis sleeve built for couples who want more — together.
The Shaft Model F is a 100% FLEXISKIN™ liquid silicone penis extension sleeve that fits naturally, moves with you, and feels lifelike for both partners. Latex-free, phthalate-free, and sized for accessible entry — this is the couples penis sleeve that lowers the barrier to something new.
Realistic Silicone Penis Sleeve Features & Specifications
Six things that make the Model F the right realistic silicone penis sleeve for couples exploring extension for the first time.
FLEXISKIN™ Liquid Silicone
- 100% proprietary liquid silicone build
- Moves and flexes with natural motion
- Lifelike realistic feel for both partners
Sleeve Dimensions
- Total length: 7.8 inches
- Insertable length: 6.5 inches
- Internal channel: 4.4 inches
Secure Internal Fit
- Internal diameter: 0.9 inches
- Insert length: 1.6 inches holds sleeve in place
- Stays secure during partnered use
Material & Care
- Latex-free and phthalate-free silicone
- Wash with warm water and mild toy cleaner
- Use water-based lube only — air-dry before storage
Realistic Black Finish
- Black colorway with lifelike skin texture
- Multi-function design for couples play
- Discreet, sleek profile in small size
Body-Safe Construction
- Zero latex, zero phthalates
- Body-safe silicone rated for intimate contact
- Hypoallergenic for sensitive skin
Realistic Silicone Penis Sleeve User Guide & Play Styles
Using a silicone penis sleeve to add length and confidence during partnered sex
For couples curious about extension, the Shaft Model F penis extension sleeve is a low-pressure starting point. Slide the black silicone sleeve on, apply water-based lubricant generously inside and out, and let the 6.5-inch insertable length do the rest. The FLEXISKIN™ material stays pliable mid-session so neither partner has to pause and adjust. Communication makes the difference here — agree on pace before you begin, and the realistic feel quickly becomes second nature. Clean the sleeve with warm water and mild toy cleaner immediately after use to keep the body-safe silicone in top condition. For more on lubricant application, see our guide to how to apply lubricant for sex.
Why intermediate couples reach for a latex-free penis sleeve as a next-level couples toy
The desire-next-level tag fits perfectly here: this is not a beginner’s novelty, it is a purposeful couples penis sleeve for partners ready to explore extension intentionally. The small-size internal diameter of 0.9 inches and the 1.6-inch insert keep the sleeve secure even as intensity builds, giving both partners confidence to stay present. Because the sleeve is phthalate-free and latex-free, couples with sensitivities can use it without worry. Explore the full range of realistic penis extension sleeves to find the size and texture that fits your dynamic best.
More Couples Sleeves & Extensions from Shaft
Explore more couples-focused toys and intimacy tools at Couples Pleasure — curated for partners exploring together.
⚡ 3-Day Delivery
🎖️ Veteran Owned
🧪 Body-Safe Materials
Discreet Toys is veteran-owned and operated. Every order ships in a plain brown box with a discreet billing descriptor — your privacy is the priority from checkout to doorstep. Questions about your order? Our returns & refund policy covers the details. Free shipping on orders $69 or more.
It’s only freaky the first time.
Free Shipping
on Orders $69+
Or any product with a HOT label — automatic free shipping, no code needed. Plain brown box. Discreet billing. Delivered in 3 business days via USPS Priority.
Plain Brown Box
No logos, no graphics, no product names on the outside. Looks like any other package.
Discreet Billing
Our business name — not "Discreet Toys" — appears on your card statement.
3-Day Delivery
USPS Priority Mail. Tracking number emailed the moment it leaves our warehouse.
How Your Order Arrives
Order Placed
Checkout in under 60 seconds
Packed Discreetly
Plain box, no markings
USPS Priority
Tracking emailed to you
At Your Door
3 business days, average
Veteran-Owned & Operated
Every order packed by our small team in Tampa, FL. Your privacy is our priority — from checkout to doorstep. It's only freaky the first time.

