PVC-coated flask weight rings for keeping your glassware and plasticware stable. 

Use flask weight rings to keep your glassware and plasticware stable and submerged when immersed in water baths. These PVC coated lead rings will not mark or scratch your glassware or bench tops.

Weight: 1000g
Inside Diameter: 748mm
Outside Diameter: 125mm

Sold as one flask ring only

Sold as one flask ring only