VWR® Spinbar® Stir Bars, CylindricalSupplier: VWR, part of Avantor
- Small removable pivot ring in the center adds to their versatility
- Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low-friction coating
- Manufactured in a registered ISO 9001:2008, as verified by SGS certification
22-ASSORTMENT includes two of each in a plastic, compartmentalized Spinbox™: 12.7x7.9mm (1/2x5/16"), 38.1x7.9mm (11/2x5/16"), 12.7x9.5mm (1/2x3/8"), 44.4x7.9mm (13/4x5/16"), 19.0x7.9mm (3/4x5/16"), 50.8x7.9mm (2x5/16"), 25.4x7.9mm (1x5/16"), 50.8x9.5mm (2x3/8"), and 25.4x9.5mm (1x3/8"), and one of each:31.8x7.9mm (11/4x5/16"), 38.1x9.5mm (11/2x3/8"), 31.8x9.5mm (11/4x3/8"), and 44.4x9.5mm (13/4x3/8").