Flow is a simple design meant for fluid movement. Perfect for seductive genital massage, the anodized aluminum Flow feels smooth as it glides. Each end gives a different sensation and each end is fully functional and safe for the body. It's great for PC exercises and perfect for learning to relax the sphincter muscles. 9 1/4 in length; 1 1/2 in diameter at the larger end, 3/4 in diameter at the smaller end. (230mm; 40mm; 23mm) Weight 349 grams; 12.28 oz.