4-Prong Swivel Clamp with Boss Head, Single Adjust

Versatile Clamping Capability: features a 4-pronged design with a maximum clamp opening of 2.95 inch to securely hold various types of apparatus and glassware Secure Grip with Cork Coating: cork-coated jaws ensure a reliable grip, preventing slippage and ensuring safety during experimentation Adjustable Boss Head Holder: built-in boss head holder allows easy attachment to a lab frame or other apparatus; adjustable by a check nut to any angle for versatile positioning Precise Pressure Regulation: adjustment screw enables precise pressure regulation, reducing the risk of glassware breakage and ensuring smooth experimentation ASIN: B0D78DYFW6