Features: 3 standard for your option: 45/90/180. If you need to just real quick measure an angle, the Corner Clamps for Woodworking is a really handy tool. Suitable for most wood thicknesses, also used for assembling two boards of different thicknesses. Made- of high-quality aluminum-alloy which is lightweight and thick enough to be rigid- and offer accuracy and design for long-term use. Excellent gift for woodworking enthusiasts, carpenter, father, boyfriends on birthdays, Christmas, fathers day or just a reward for yourself . Specifications: Material: aluminum-alloy Style: 45/90/180(optional) Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xCorner Clamp