Check the listing for details. CMP PVA Sponge Brush Roll BR7031216 70x31x216 mm for AMAT Mirra Mesa None-Core. Condition: New. Listed at 99.99 USD. 99.95 USD for 1 EA Lot of 4 units required for replacement on CMP MPN : BR7031216 100% Synthetic Poly Vinyl Alcohol [PVA] construction Non-Core Open-Cell structure Interconnected porous structure Excellent wet state elasticity High resistant to chemicals Anti-static function Lint and particle free Easy controlling pore size and shape Precision cast and cut MPN : BR7031216 for Applied Material / Mirra Mesa 200mm / None-Core Samsung engineer has tested and replaced OEM product of Aion, Rippey to our Korea Made Brushtek product every month regular supply to Samsung semi-con CMP line directly and proudly guarantee the quality Strongly recommend you to test lot of 4 to your AMAT as sample Manufacturer as Brushtek located in South Korea is No. 1 maker of CMP PVA brusch roll, and product has been field-tested and supplied to Samsung semi-condutor CMP line as regular supplier