About this item

• Stabilize glassware in water baths or troughs
• 48 mm I.D., 86 mm O.D.; 0.71 lb. (325g); 61 mm I.D., 110 mm O.D.; 1.64 lb. (745g)
• Fit 50 - 500 ml flask; size error;Fit 250 - 2000 ml flask; size error: approx 2-4 mm.
• Coated with vinyl, non-slip, corrosion and chemical resistant; will not scratch glassware
• Warranty: StonyLab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
• ASIN: B08QCPYMXJ, B08QCVK2D1