MDF Wheel, 6mm thick fibre board, 34mm and come with drilled centre holes for 4mm dowel, There are also available in 54mm and 74mm or you can order a mix bag
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
Can Collapsible Metal with a black, No: 8 stopper with 1 hole & 1/4 fitting with 1 3/4 in opening with cap. Used for Charles Law or pressure principals within the class room, Measure: 9 3/8x6 5/8x4 1/8in, for industrial or commercial use, Lightweight and durable
VWR* Visual Scientifics Photogate Sensor, Four Modes: Gate, Pulse, Pendulum, Frequency, also Works with VISUAL SCIENTIFICS and numerous physical science systems, This kit contains: 2 Photogates, 2Connecting wires, Main photogate hub and control, Wall charger