This 4 x 4 clamp frame set is ideal for monogramming baby items, canvas, and even delicate fabrics while providing strong holding power, yet virtually without “hoop burn” on fabric. The click and snap design allows you to hoop your project easily in seconds. The inside of the frame has a smooth rubber grip on one side and textured fabric grip on the other. The combination of these two surfaces helps keep your project in place, minimizing damage to fabric or fibers.