The FLEX XC 3401 VRG 4 inch Backing Plate is 4 3/8 inches in diameter and allows you to use 4, 5 and 5.5 inch pads with your FLEX XC3401 polisher.
Designed by FLEX specifically for this polisher, the all new 4" inch backing plate creates the forced rotation that sets the FLEX apart from other dual action buffers.
OEM factory replacement for the original backing plate.
Designed specifically for the VC 3401 polisher, this backing plate is nothing short of amazing. The unique "gear -driven" design delivers a true dual action motion. The OEM FLEX backing plate is designed to reduce vibration while providing vibration-free even motion and buffing.
Be sure to check out the full sellection of Flex backing plates ON SALE http://www.chemicalguys.com/category_s/171.htm