Made of molded urethane, this material is flexible yet incredibly durable. This plate will last through countless, rigorous uses without falling apart or becoming unbalanced. Balancing is essential when it comes to polishers because an unbalanced plate will bounce, leaving an uneven finish. The reinforced inner construction uses steel struts molded into the center hub to give the plate stability and maintain an even surface for your pad. Another benefit of urethane is its resistance to heat. The Flex Backing Plate minimizes the transfer of heat from the motor to the paint to prevent burning. Spontaneous heat build-up is also reduced. Remove and replace pads easily from the hook & loop surface. The hook & loop is molded into the plate so it will not come off. The backing plate is smaller than the pads to allow a generous lip of foam to protect the paint surface. Even if you turn the pad onto its side accidentally, there is an inch of soft, beveled urethane between the edge of the plate and the inner construction. The threaded post fits any polisher with a 5/16 diameter. Our Dual-Action Flexible Backing Plate provides the safest, most durable surface for your pads so that you get the best performance possible from your dual-action polisher.