This Polystyrene Rack Fits Test Tubes Up To 6-Hole, 6-Pin, Are Excellent Space Savers And Can Act As An Extra Pair Of Hands In The Lab. There Are 6 Holes To Hold Tubes, As Well As 6 Pins For Letting The Tubes Dry, Size: 25Mm In Diameter
Premium Clamp - Three Prong with Bosshead, Vinyl Coated Extension Lab Clamp, 8.5 cm maximum clamp opening attached to High Strength Alloy swivel bosshead, Boss accommodates to 18 mm rod
Knife Switch, Single Pole - Single Throw, Durable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.