MAGIC foam is a chemical free scrubbing sponge which will help remove hard to clean dirt and grime from your pool and spa surfaces. Also suitable for pool & spa covers, BBQ;s and outdoor furniture. Magic foam scrubbing sponge has super fine pore structure that helps to remove dirt and stains without additional cleaning chemicals or agents. Perfect to also assist in the removal of scale build-up, mould and scum deposits around your home. Pack contains 4 sponges, 2 small and 2 large Large ? 120mm x 75mm x 30mm Small ? 75mm x 35mm x 30mm (Each sponge can easily be cut into an alternative size with a knife) To use Magic foam: Soak foam piece to be used in water then squeeze out any excess Gently scrub the affected area then wipe area dry Sponge can be used multiple times until it eventually deteriorates.