The multi-sex strap-on system for men and women. Add thickness and length. The material is rigid enough to hold shape, but soft enough for sexual comfort. Comfortable and stretchable straps to hold it in place. Comes in three different lengths: 6, 7 and 9 inches. Made from non-phthalate body safe material, which inlcudes Doc's anti-bacterial Sil-A-Gel formula and is proudly made in America. Inner diameter is 1.40in. Fits waist size 24 to 48 inches.