🔧【Premium Quality】: Made from high quality engineering plastic, durable and wear resistant. Designed with a high-impact plastic construction that ensures optimal durability and lightweight usability. 🔧【Perfect Fixation 90°Corners】: With the help of C-clamps, 90 degree right angle clamps, quick clamps or other clamping woodworking tools, our 90 degree positioning squares can efficiently fix 90° right-angle, keep the frame in alignment, and quickly help you fitting tool parts, such as photo frames, right-angle frames, etc. 🔧【Multiangle Scales】: Both sides of the positioning squares are marked with width scales. The scale value is clearly visible, allow you accurate and fast measure planks or wood parts. Near the center of the square, there are 22.5° / 45° scales, use this L-type right angle ruler to draw lines to achieve the perfect cutting of the board. 🔧【Wide Application】: Suitable for home, farmhouse, workshop, professional use, DIY woodworking, drilling, sawing, etc. Apply on assemble photo frames, boxes, cabinets, drawers, book shelf, etc. 🔧【Different Sizes & Package】: [4 inch/100mm x 4pcs] 90 Degree Positioning Squares. Search "Housolution 90 Degree Positioning Squares" to find different sizes and sets to meet your needs., Weight: 0.485 pounds, Manufacturer: Housolution