Firmer than most sex toys, the Bonez line is made of black phthalate-free TPR material. The Black Graduated Double has an intriguing shape with lots of ridges for textural sensations.
The wider end is tipped in a large ball, tapering in briefly before sliding into a gradually thinning shaft. Flipped around, the narrower end is tipped in a small ball, thickening into two widely-spaced ridges and a ball at the end.
Both sides make ideal non-slip handles for more control when used solo or with a partner. While it is double-ended, the 7 ½" length is a bit too short to be used as a double dildo; it is much better suited to one user at a time.
Both water and silicone based lubricants can be used with this toy.