C-Shaped Lead Rings 1 lb, Scienceware

- Adjusts to larger flasks and other lab apparatus where a closed ring might not fit
- Great for stabilizing large glass cylinders
- Vinyl coating protects researcher and easily-scratched glassware
- Ideal for fluid handling set-ups already in place-no need to disconnect in order to stabilize
- Approx. weight: 450 gms (1.0 lb)
- I.D.: 51mm (2.0")
- Fits glassware: 250 - 1000ml flasks