The Knuckle 40

You have an amazing hole.

And we have the perfect stretch for it.

The Knuckle 40 is for people that love a relentless and beautiful stretch.

The conic top will lodge itself right in the opening of your second hole while the rest of the toy will push against the walls of your crater.

It really feels like double fisting!

If you have a big hole or if you're looking to up your double fisting game, this one is for you!

Sizing (in inches) 

Max Diameter 4.0

Max Circumference 12.6

Max Neck Diameter 2.8

Max Neck Circumference 8.9

Insertable Length 8.0