# Model F Oak Realistic Silicone Sheath Extender Size 2

## What it is

The Model F Oak Realistic Silicone Sheath Extender Size 2 is a Shaft wellness product. Positioned for for-him and for-her. Current price: $49.99 (retail value $74.99). In stock.

## Emma's take

Length, girth, and confidence in one sophisticated sleeve.

The Model F Oak brings serious engineering to size play. That FLEXISKIN™ liquid silicone feels incredibly realistic while adding nearly two inches of insertable length and substantial girth. The internal sleeve accommodates most sizes comfortably, and the textured exterior mimics skin beautifully. This isn't a beginner's first extender — the added girth requires communication and warm-up with partners. But for couples ready to explore new dimensions together, it delivers on both the physical and psychological fronts.

## Specifications

- Material: 100% FLEXISKIN™ liquid silicone
- Total length: 8.8 inches
- Insertable length: 6.9 inches
- Internal length: 4.9 inches
- Internal diameter: 1.6 inches
- Internal insert length: 0.8 inches
- Size: 2 (medium fit)

## What's in the box

- 1x Model F Oak silicone sheath extender
- 1x care instruction card

## Care instructions

- Wash thoroughly with antibacterial soap and warm water before and after each use.
- Pat dry completely and store in a cool, dry place away from direct sunlight.
- Use only water-based or silicone-compatible lubricants to preserve material integrity.
- Inspect for tears or damage before use and replace if compromised.

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Last updated: 2026-07-21
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## Frequently asked questions

## How much length and girth does the Model F Oak add?

The extender adds approximately 2 inches of insertable length and significant girth enhancement. The internal diameter is 1.6 inches, so it works best for average to above-average sizing.

## What size range does Size 2 accommodate?

Size 2 is designed for medium sizing with a 1.6-inch internal diameter. The internal insert length is 0.8 inches, making it suitable for most average-sized users.

## How do I clean and maintain the FLEXISKIN material?

Wash thoroughly with antibacterial soap and warm water, then pat completely dry. The liquid silicone is non-porous and body-safe, but avoid silicone-based lubricants which may degrade the material over time.

## Is this suitable for beginners to size play?

The Model F Oak adds substantial girth and requires communication with partners about the size increase. It's better suited for couples who've explored size play before rather than complete beginners.

## Does the extender stay in place without additional support?

The extender relies on natural grip and may need repositioning during vigorous activity. For maximum security, consider using it with a supportive harness or ring for extended sessions.