Features: brand new and high quality. Accuracy 90 degree allows you to glue and pin the frames precisely and quickly. Support a wide variety of wood sizes, the maximum clamping range is about 3.82inches. The adjustment is so easy compared to those that you have to screw tight. All you have to do is flipping the lock up or down. Cannot be easier. This woodworking corner jig is an for ideal choice for novice or professionals. The two sides have measurements on them, one in centimeters and the other in inches. This angle locking clamp is made of high strength engineering plastics, the plastic, although lightweight, is for tough and durable, and corrosion-resistant for long term use. Buy in confidence! Specifications: Material: Plastic Size: approx 177x177x13mm/6.97x6.97x0.51 inches Clamping Range: 0-97mm/0-3.82 inches Package Includes: 1x 90 Degree Right Angle Clip note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.