Thrill to three times the stimulation Three silicone balls, each with a smaller weighted inner ball for subtle sensation, are tethered together with a looped retrieval cord. Silicone is an ideal material for insertion. It is body safe, phthalate-free, allergy safe, and flexes gently for comfort. Enjoy triple stimulation with this great set of silicone balls. Measurements: 13 inches in total length, ball measures 1.75 inches in diameter. Material: Silicone. Color: Black