What makes the Square Perfect clamps so special? Quality and Performance! Square Perfect only supplies the highest quality photo clamps. We have searched the world over and partnered with a factory which utilizes the best composite material which results in a heavy duty, durable, clamp that will be around for years to come. Every product we sell is designed with the photographer in mind.SPECIFICATIONS:6 High Performance Clamps IncludedInnovative Movable Teeth for Ultimate Flexibility and TensionEssential Item in Any Studio SetupMaterial: High Grade NylonLight Weight and Easy to UseHeavy duty muslin clamp with firm gripPerfect for clipping paper, canvas and securing muslin backdrops to a crossbarExtra Strength Toothed area holds round objects firmlySwivel jaws hold irregular itemsErgonomically designed handle provides comfortable grip4" Long, 3" Wide100% Satisfaction GuaranteeWHY SQUARE PERFECT?As you know, there are a million choices and just about as many sellers touting their clamps as the best. One thing to note is the size of the clamp and the quality of the material. Although our clamps may be slightly more expensive, they offer more durability and performance than the cheap imposters. Check out our product reviews and you will see the Square Perfect difference.