This is not an OJK plate, but a plate set compatible with mini disks, perfect for snowboards with easy installation. It offsets the board by 12mm from the snow surface and supports riding on rough snow surfaces by reinforcing the board's rigidity. TPU material cushions are attached to the board surface to prevent scratches. - Model Name: Generative Grid Carving Plate - Size: 325mm (length) x 240mm (width) - Weight: 194g for 2 plates, 30g for one foot binding - Set Contents: 4 plates (front and rear), flat washers, offset nuts - Installation: Easy installation - 3D printed, material: PLA - Compatible with mini disks Pliers or an 8mm wrench are required for installation. Storage in high-temperature environments may cause deformation. Thank you for viewing.