Features: With large elasticity , small distortion ,strong stretching force , it has good shock absorption effect. Widely used in the metal processing stamping industry Has good performance of resistance to high-energy rays Oil resistance: polyurethane is a highly active mineral oil with a low affinity and is virtually impervious to erosion in fuel and mechanical oils Wear resistance: its Wear resistance is generally is about 3-5 times of rubber within the range of 0.01-0.10（cm3）/1.61km Wide hardness range: it still has the elongation and resilience of rubber under high strength Specification: Dia: 50/80/150mm(Optional) Thickness:40mm/1.6in Weight: 90-803 g / 3.2 -28.3 oz(approx.) Package list: 1 x Polyurethane Crash Pad 1、With large elasticity , small distortion ,strong stretching force , it has good shock absorption effect. 2、Widely used in the metal processing stamping industry 3、Has good performance of resistance to high-energy rays 4、Oil resistance: polyurethane is a highly active mineral oil with a low affinity and is virtually impervious to erosion in fuel and mechanical oils 5、Wear resistance: its Wear resistance is generally is about 3-5 times of rubber within the range of 0.01-0.10（cm3）/1.61km