The Doc Johnson Knuckle Up black accessory pairs a standard Vac-U-Lock plug with a universal-fit ring design. Crafted from sturdy plastic, this 5.9 by 1-inch add-on introduces hands-on functionality to solo routines or sessions with a partner. It integrates smoothly into any existing Vac-U-Lock system setup.
Users slide their fingers through the knuckle rings situated directly beneath the base plug for a secure hold. This straightforward mechanical design gives buyers dependable control during use, expanding the versatility of compatible harness and handle collections without requiring complicated setup steps.
It is constructed from plastic and finished in black.
The dimensions measure 5.9 inches by 1 inch.
Yes, it is compatible with the entire selection of Vac-U-Lock attachments.
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