Last updated October 2026 · Written by Casey M., Resident Toy Specialist at Epic Dildos.
Quick Answer
The JJ Knight dildo is an 8.5 inch realistic dildo from Doc Johnson's Signature Cocks series, molded from adult performer JJ Knight. It is made from UltraSkyn, a soft, skin-like material, and comes with a removable Vac-U-Lock suction cup for hands free or harness play.
Stock note: this one sells out often. If it is unavailable, our Best Porn Star Dildos roundup covers in-stock replicas with similar size and feel.
Design and Material
Because it is molded from the performer, the shape, head and veining are his. UltraSkyn gives it a soft surface with more drag than smooth silicone, so use plenty of water based lube. At 8.5 inches long it suits people who already know they enjoy a fuller size.
Features
- Removable Vac-U-Lock suction cup: sticks to smooth surfaces, and the dildo also fits Vac-U-Lock harnesses and accessories.
- Realistic detail: sculpted head and veins from the original mold.
Things to Know
- UltraSkyn is not silicone. Clean it with warm water and mild soap, dry it fully, and store it on its own.
- Some buyers expect an exact visual match to the performer. The shape is molded from him, but colour and finish are Doc Johnson's.
See all the JJ Knight dildos and the wider Signature Cocks range.
Frequently Asked Questions
What is the JJ Knight dildo?
It is an 8.5 inch realistic dildo from Doc Johnson's Signature Cocks line, molded from adult performer JJ Knight, made in UltraSkyn with a removable Vac-U-Lock suction cup.
How big is the JJ Knight dildo?
It is 8.5 inches long, a mid to large realistic size.
What if the JJ Knight dildo is out of stock?
Other Signature Cocks replicas use the same UltraSkyn material and suction cup. See our Best Porn Star Dildos roundup for in-stock alternatives.