Non-Shaving for sharp, machine edges parts. The Oil Seal Cover (above) has sharp edges and it can shave normal plastic, but the special ABS/TPU will not shave and the design of the inserts also protects the seal. The ABS/TPU inserts are riveted to the side of the tote, suspending the parts and saving on material. This economic solution provided the customer with the parts protection required at a reasonable cost.