EC21 Buying Leads Catalogs - glass clamp http://importer.ec21.com/buy_leads/glass clamp.html Buy Lab Glasswarehttp://www.ec21.com/offer_detail/Buy_Lab_Glassware--8324313.htmlGlass stoppers cone 14/20 Glass stoppers cone 19/22 Beaker, short form, 25ml Beaker, short form, 50ml Beaker, short for20090902