Corner Clamp Data Right angle clamp lengths are 3" and 4", screw length is 4", 8 sets of 90 degree positioning squares, weight 1.8 lbs. High Quality 90 Degree Positioning Squares is made of high-quality plastic, with high cost-effectiveness and durability Product Specifications: Material:plastic 3 Inch Positioning Square: Length:80mm,Width:50mm,Height:13mm Thickness:10mm Weight:18 grams 4 Inch Positioning Square: Length:100mm,Width:100mm,Height:20mm Thickness:15mm Weight: 60 grams Package Includes: 4 x 3 inch Right Angle Clamps 90 Degree 4 x 4 inch Corner Clamp L-Type Corner Notice: Due to manual measurement,there will be an error of 1-3cm,thank you for your understanding. 📐【Multiple Sizes】:The L-shaped angle clamps have 45 degree and 22., 5 degree scales,provide 3,4 size combinations,suitable for more woodworking workpieces,and a variety of sizes to meet your different needs. Can be used as a right angle mold to quickly make frames,right angle frames,right angles,etc,including 3,4 sizes. Woodpecker Tools Yufana 8 Pcs Right Angle Clamps 90 Degree,Corner Clamp L-Type Corner Positioning Right Angle Clamps Positioning Squares Clamp,for DIY Picture Frames 90 Degree Right Angle Clamps Veiko woodworking 45 and 90 degree right angle clamps aluminum alloy... 📐【Precise 90°Angle】:Creating precise 90° angle woodwork will be a breeze,which is essential to ensure a balanced project outcome. Product Description: Made of high-strength engineering plastic(impact-resistant polycarbonate). 90 Degree Clamp,Positioning Squares, (3 4) x 8 Right Angle 📐【Wide application】:Corner clamp L-Type corner is suitable for the angle clamp of wood welding and metal right-angle welding.