PTFE* resin-coated stir bars with pivot ring. SpinPak* contains six bars total, two each of the following sizes: 25.4Lx7.9Dia.mm, 38.1Lx7.9Dia.mm and 50.8Lx7.9Dia.mm.
Overhead Math Resource Kit, include most popular overhead manipulative for teachers. Also included are fraction and decimal chart transparencies as well as 1 cm & 1in square graph transparencies
VWR*, EcoStir, Magnetic Stirrer, Brushless DC motor, Max. Speed range is 2000rpm, Low price and high quality, Ultra silence and vibration-free design, PET top provides excellent chemical resistance, Speed range: 300-2000prm, Voltage: 100-120/200-240V, 50/60Hz