The IWF certified version of our full-size technique disc is meticulously constructed and carefully calibrated to ensure we deliver a precise technique disc. The discs are calibrated to within +10/-0 grams and feature an IWF logo imprint on the disc face. Proprietary rigid plastic, hollow design and moulded construction ensure discs last a long time. The distinctive design includes a deep rimmed edge facilitating a firm grip for easy and safe handling, bar loading and unloading and comes in two stylish matte colours. Discs are sold individually.