This is a set of plates ranging from 20mm to 12mm, in 2mm increments. 20mm: 2 sets (4 pieces) x 1,500 = 3,000 18mm: 2 sets (4 pieces) x 1,500 = 3,000 16mm: 2 sets (4 pieces) x 1,500 = 3,000 14mm: 2 sets (4 pieces) x 1,500 = 3,000 12mm: 2 sets (4 pieces) x 750 = 1,500 These wood plates are specifically designed for skin-friendly campus board training. Made from high-strength walnut wood, the edges are rounded with a taper. This taper reduces stress on the skin and provides an excellent grip. Improved hold strength will dramatically increase your limit grade. Train your fingers with these wood plates and push your limit grade higher. Set Contents: Width 117mm x Height 45mm 20mm to 12mm in 2mm increments, 4 pieces each. Important Notes: Do not use mounting screws with a shaft diameter of 4.0mm or more. This may cause the plate to crack due to the load. Use the included wood screws (3.5 x 32mm) or 3.8mm course thread screws (32mm or longer) for installation. Tighten the final turn by hand. As the product uses natural wood, there may be slight variations in width and height.