Vac-U-Lock® Accessories – Knuckle Up
The Knuckle Up is a handheld Vac-U-Lock grip designed for users who want direct, precise control during use. The brass knuckle-inspired frame fits naturally between the fingers four finger loops distribute grip evenly across the hand, eliminating wrist strain and giving you a stable, locked hold at any angle.
Where suction cup bases work best on flat surfaces, the Knuckle Up works best in your hand. It converts any Vac-U-Lock compatible dildo into a handheld toy with a grip that does not slip, shift, or require readjusting mid-use. The compact frame adds no significant length the dildo sits directly above the grip, keeping the experience as natural as possible.
Compatible with all RealCock Toys dildos and any Vac-U-Lock® attachment worldwide.
Key Features:
- Brass knuckle grip: four finger loops for a locked, non-slip hold
- Converts any Vac-U-Lock dildo into a precision handheld toy
- No surface required: use anywhere, any position
- Compact frame: adds minimal length to your attachment
- Compatible with all Vac-U-Lock® attachments including all RealCock dildos
- Body-safe, easy to clean, travel-friendly
| Material | ABS plastic |
|---|---|
| Length | 5-3/4″ |
| Insertable Length | 5″ |
| Diameter | 4-1/2″ |
Frequently Asked Questions
We believe great experiences start with informed choices. Here are the answers to what our customers ask most.
What is the Knuckle Up and how does it work?
A brass-knuckle-shaped ABS grip your fingers slide through the knuckle rings while the Vac-U-Lock socket sits on top. Snap any RealCock Toys dildo onto the socket for a close-contact, finger-stabilized grip that keeps the toy positioned exactly where you aim it.
How is the Knuckle Up different from the Vac-U-Lock Handle ($79)?
The Handle provides a full 8.5″ distanced grip for thrusting motion from outside like holding a tennis racket. The Knuckle Up puts your hand directly at the base for close, tactile precision. The Knuckle Up is better for targeted stimulation; the Handle is better for full thrusting range of motion.
Is it comfortable to use for extended sessions?
The knuckle rings fit most hands comfortably and the ABS is smooth without sharp edges. One reviewer called it "a versatile tool, the handgrip makes it so easy to use." The close-contact design also means less wrist fatigue than gripping a dildo base directly.
Is it good for partner use as well as solo?
Both used for pegging, partner play, and solo use alike. The brass-knuckle grip gives a partner precise control during pegging or manual stimulation, and gives the solo user a stable, no-slip base.
Is $39 good value for what it does?
Yes, the lowest-cost Vac-U-Lock grip accessory that transforms any RealCock Toys dildo into a handheld precision tool. Made in USA, phthalate-free ABS, compatible with all Vac-U-Lock attachments. Ships discreetly, 7-day returns.
