Keeps it afloat and clean, push with one hand. This is a foam-type dispenser that attaches with a seal hook. ●Product Information● Product Name/ Hover Seal Hook Foam Dispenser 500 Size/ 6.6 x 10.4 x 23H (cm) Capacity/ 500mL Materials/ Polypropylene, AS resin, PET, polyurethane, etc. Weight Capacity/ 1kg