3 Prong Swivel Clamp, with Boss Head

About this item Size L: Maximum grip size of 90 mm (3.54 inch) Size S: Maximum grip size of 33 mm (1.3 inch) This StonyLab 3 prong clamp is used to securely hold almost any type of apparatus and glassware with non-slip rubber coated jaws Build-in boss head holder for easily attaching to a lab frame or other apparatus is adjustable by a check nut to any angle The adjustment screw helps provide precise pressure regulation and reduce chance of glassware breakage 360 degree swivel type clamp StonyLab ensures high quality products and premium customer service; if received damaged, please contact us immediately; we will solve it until satisfied ASIN: B07XFD6SZQ; B0D78F41VD