Attach one of the RealRock vibrating or non-vibrating dong to this boxer with harness to penetrate deeply into your partners body. The boxer with harness is made for every dong up to ? 50 mm. The straps areadjustable and make sure the attached cock will stay in place. Specifications: - Elastic straps fits size: S to XL / Usa Size: 6 to 12 / Uk Size: 10 to 16. Compatible with every dong up to 2 inch diameter. Boxer is made from 82% polyester, 18% spandex for that comfortable but tight Fit. From Shots America.