the ShineMate Cooltec backing plate is a high quality 5" (123mm) backing plate designed for use with dual action polishers that use a 5/16"-24 single such as the Shinemate ERO600, DAS-6 and DAS-6 PRO Dual Action car Polishers.
This backing plate features a medium density backing with holes which allow ventilation and the pad to run cooler than comparable backing plates. and as with all ShineMate products, you know it's a high quality product that is built to last.