Bel-art C-shaped Lead Rings For Flasks, Diameter Inner: 4.31 Cm, 1.7 In., Diameter Outer: 7.62 Cm, 3 In., For Use With: 125 To 500ml Flasks, Weight: 230 G, 0.5Lb., Autoclavable: Not Autoclavable, Bright Green, Accessory 1/ea
Bel-art C-shaped Lead Rings For Flasks, Diameter Inner: 5.1 Cm, 2 In., DiameterOuter: 8.89 Cm, 3.5 In., For Use With: 250 To 1000ml Flasksml, Weight: 450 G, 1Lb., Autoclavable: Not Autoclavable, Bright Green, Accessory 1/ea
Bel-art C-shaped Lead Rings For Flasks, Diameter Inner: 5.58 Cm, 2.2 In., Diameter Outer: 10.16 Cm, 4 In., For Use With: 500 To 2000ml Flasksml, Weight: 680 G,1.5 Lb., Autoclavable: Not Autoclavable, Bright Green, Accessory, Warning - California - C
Bel-art C-shaped Lead Rings For Flasks, Diameter Inner: 7.11 Cm, 2.8 In., Diameter Outer: 11.43 Cm, 4.5 In., For Use With: 1000 To 4000ml Flasksml, Weight: 900G, 2 Lb., Autoclavable: Not Autoclavable, Bright Green, Accessory, Warning - California -