Sportsheets Thigh HarnessHarness: Thigh Size Adjustable Up to 13. 5 22 inches Our thigh strap on allows your partner to grind on your thigh, freeing up hands to do other things. Soft, comfortable neoprene forms to your body making this comfortable to wear as long as you need. Reinforced opening accommodates flared base dildos. Interchangeable rubber O ring 1. 5" (3. 8cm). Machine washable. Dildo sold separately. Ingredients: 90% neoprene, 5% polyester, 2. 5% ABS plastic, 2.