Flask support rings, *BiBase*. Double sided. Sits firmly on the bench to support round-bottomed flasks. -Very soft and easy to clean -Resistant to chemicals -Good thermal and electric insulation -Excellent adhesion with glass -Non-slip Available in two qualities: Black rubber, good adhesion to glass. Blue silicone elastomer, resistant to oxidation and temperatures from -60 to +200°C.
Product Specification: Material: Silicone elastomer For flasks: 50 - 500ml Max.: 13 kg Ext. diam.: 80mm Int. diam.: 46mm Height: 30mm
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