Specification Brand : Mavaol BulletPoint1 : Select high-quality, environment-friendly and high-density synthetic cork BulletPoint2 : The flask holder is pressed by high temperature and pressure, and the thickness is 30mm. BulletPoint3 : and alkali , , heat , heat insulation BulletPoint4 : Good elasticity,strong friction coefficient,make sure the flask can place stably BulletPoint5 : Suitable for all kinds of round bottom glassware, convenient and practical Color : Silver IncludedComponents : ring ItemDisplayDimensions_Height : 1.38 inches ItemDisplayDimensions_Length : 8.27 inches ItemDisplayDimensions_Width : 2.95 inches ItemDisplayWeight : 0.34 pounds ItemName : Mavaol 80/100/110/120/140/160mm Multiple Laboratory Synthetic Cork Ring Holder for Round Bottom Flask (Outer Diameter 160mm) ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 16 centimeters ItemPackageDimensions_Width : 16 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-support-rings ItemVolume : 195 cubic_centimeters Manufacturer : Mavaol Material : Iron ModelNumber : Mavaolmyx0oi35fv-06 NumberOfItems : 1 PartNumber : Mavaolmyx0oi35fv-06 ProductDescription : Features: Select high-quality, environment-friendly and high-density synthetic cork The flask holder is pressed by high temperature and pressure, and the thickness is 30mm. and alkali , , heat , heat insulation Good elasticity,strong friction coefficient,make sure the flask can place stably Suitable for all kinds of round bottom glassware, convenient and practical