Collapsible Metal Can W/ Pump ,Each

Details:

Can collapsible metal with pump^ can collapsible metal with pump, collapsible metal can with a black no. 8 Stopper with 1 hole & 1/4 fitting with 1 3/4 in opening with cap. Comes with hand operated vacuum pump. Used for pressure principals within the class room, measure: 9 3/8in x 6 5/8in x 4 1/8i