These Black Bomber Barrel Clamps provide the framework for a wide array of pleasure play. Featuring 4 ounce dangling weights, these clamps are perfect for creating the nipple sensation play you crave. The clamps are highly adjustable via the twisting barrels. No forgiving spring loaded clamps here! Just screw down tight for unrelenting pressure. Vinyl coated tips ensure a good grip and add comfort. It is your domain. Measurements 4.75 inches in total length, 1.12 inches in diameter, clamps up to 0.5 inch wide. Materials Coated Brass, Vinyl.