Optimum No Rinse Version 5 (32 Oz) and Big Red Sponge (BRS) Car Cleaning Kit, ONR Rinseless Car Wash and Wash Sponge for Washing and Auto Detailing. Sponge Ideal for Rinseless Wash and Car Detailing Shampoo: Use with our Optimum No Rinse (ONR) or any rinseless wash for enhanced application, or use with our Optimum Car Wash or any other leading car wash shampoo.