SHAPE CANON C700 TOP PLATE : Cheese Plate Designed with threaded hole ¼-20 and 3/8-163/8-16 ARRI standard compatible¼-20 SHAPE standard compatibleWeight : 275 g./ 0.606 lbsFull dimensions : 170 mm / 6.9 in. X 96 mm / 3.7 in. X 14 mm / 0.5 in. (Length, Width, Height).A 3/16 Allen key is necessary for the hardware ¼-20UNC.The principal components are CNC machined from 6061-T6 aluminum monolithic blocks. The parts are then anodized to protect against wear and oxidation.Our products have a lifetime warranty.