Can Replacement collapsible, F-Style, with 1 3/4 in Delta opening with cap. Used for Charles Law or pressure principals within the class room, Measure: 9 3/8in x 6 5/8in x 4 1/8in, for industrial use, Lightweight and durable, for storage of liquids, Capacity: 1 gal
Replacement Sand, set is a refill of the sand included with the Tectonics model. Set includes one pound each of beige, black, blue, orange and yellow sand