Made of plus silicone TPR/silicone blend silicone for a smooth and warm feel, TPR for amazing stretch and strength. Phthalate free. The CLUTCH Cock/Ball Sling by Hunkyjunk Tar measures Width: 2", Height: 2.75", Depth: 2.25", Main hole circumference: 4.25", Shaft hole Circumference: 3.75", Ball hole circumference: 3.5". CLUTCH is more cushion everywhere-it surrounds in rubbery thick support-its heavy so you know its there use for quick play or long wear, it fits so well you will want to show off!