Step up to quality! This set by Ulmia is the original German version of an incredibly useful type of clamp that has been cheaply-and badly-copied by lesser suppliers. Get the best quality tool for best quality results. Works great for mitered joints such as casing, crown moldings, picture frames as well as holding parts together for assembly. The clamp puts just enough pressure on your miters to create a perfect glue joint that won't fail. A woodworkers best friend, a tool that should be in every trim carpenter or cabinet builder's toolbox. Youll be impressed how easily you can clamp and align many types of joints. Spring steel rings are available in 6 different sizes, applied with the special pliers. Set includes 1 pair pliers, 8 rings each size A to F, total of 48 rings.