LAB-Ring, lead, 70mm, O-shape vinyl coated, blue, for 1000-4000ml flasks
LAB-Ring, lead, 70mm, O-shape vinyl coated, blue, for 1000-4000ml flasks
LAB-Rings to stabilise glassware and plasticware on shakers or to immerse in water baths. Vinyl-coated lead rings will not mark or scratch benchtops and labware.