Burette Clamps - Rapid CH12349/1, These burette clamps attach to retort stands and have rounded steel jaws that open from 10 to 35mm diameter. Rapid Burette Clamp
Rapid-Double-Burette-Clamp-Rapid-CH10543-2-p-This-metal-clamp-attaches-to-a-normal-laboratory-retort-stand-and-securely-holds-1-or-2-burettes-p-Rapid-Double-Burette-Clamp
Burette Clamps - Rapid CH12349/3, These burette clamps attach to retort stands and have plastic coated rounded steel jaws that open from 10 to 35mm diameter. Rapid Burette Clamp with Plastic Coated Jaw