2PCS Drinking Water Press Hand Manual Pump Dispenser for Bottled Water 5 Gallon Home Office School Fits most standard water bottle with diameter of 6cm /2.4" bottleneck, Excluding Glass Removable tube for easy cleaning. Economical-no battery used and not electricity costs. Easy working-just press pump head water will be pump out. (Please continuesly press it several times, water will run out then) Great for home, office, school, factory,camping Approx Dimension:14 x 9cm( Height x Diameter)