High Quality Materials: The wood clamps are made of high quality plastic materials, which are durable and can work for many times without damage. Durable materials make the clamps have a long service life. Adjustable Angle Clamp: Suitable for 5-22mm thick boards and T-joints, also applies to assembly of two boards of different thickness. Save working time and reduce working difficulties. Easy to Use: The right angle joint clamp with a strong and light spring which helps to hold them in place and give a good 90 degree angle to your work piece while you are gluing/drilling or screwing together. Package Included: A set of 4 angle clamps, can save time of work and reduce surface workload. Fasten boards and frames in a simple and quick way at a 90 angle. Wide Applications:Multi-function pliers corner clip fastener It is suitable for woodworking, repair connection of furniture. cabinets and furniture, to reinforcement of the photo frame, to the DIY wood project.