Our Anal Thruster are handmade made of solid 316 surgical stainless steel. The handle allows for easy, twisting, gentle manipulation or fast in and out thrusting for maximum stimulation. Great workup to our large butt plugs. Hand polished and chrome plated to a beautiful, smooth finish. 5 balls graduating in size from the smallest ball, diam. 3/4 inch (1.905 cm) at the tip up to largest ball 1 1/4 inches (3.175 cm). It is 6 1/4 inches (15.875 cm) long. Can be warmed in water or cooled in ice for additional sensation if you like that sort of thing. Nice weight, great for kegal exercises. Includes velvet drawstring storage bag. Anal Beads on a Stick Dimensions Smallest ball: Circumference 2 3/4 inch (7 cm) Diam. 3/4 inch (1.905 cm) Largest ball: Circumference 4 1/4 inch (10.795 cm) Diam. 1 1/4 inches (3.175 cm) Overall Length: 6 1/4 inches (15.875 cm) Weight: 13.7 ounces (105 grams)