Brush-Up™ is designed to fit inside cups and glasses with its rounded design and features durable bristles to make cleaning fast and effective. The strong suction cup at the base of the washing up brush stays firmly in place as you wash making it easy to scrub residue from your glasses. To release the suction cup, simply pull tab on the base. Suitable for glassware and crockery up to 14cm tall. For best results, fill sink or bowl with enough soapy water to cover half the height of the brush. Ensure suction cup is pushed firmly onto a smooth, level surface.