The Sidepress wringer is injection molded with high density polymer and features a strong durable smooth surface that is easy to clean and sanitize. • Unlike foam plastic wringer, our wringer does not provide a breeding ground for bacteria. • Gears and pressure plates are fiber reinforced nylon which allows for quiet and smooth operation. • Eliminate the need to stock various sized wringers. The wringer is designed to effectively wring all wet mops from 340 g to 900 g / 12 oz to 32 oz.