StonyLab 2-Pack Adjustable Bosshead Clamp Holder, Lab Heavy Duty Boss Head Clamp Holder Aluminum Alloy Body, up to 16mm Rods for Laboratory Use

StonyLab 2-Pack Adjustable Bosshead Clamp Holder, Lab Heavy Duty Boss Head Clamp Holder Aluminum Alloy Body, up to 16mm Rods for Laboratory Use

EISCO Chemical Resistant Steel Ring Stand Set - Lab Stand Support with Clamp - 8 Inch x 5 Inch Base, 24 Inch Rod - Use as Glass Funnel Stand or Test Tube Holder

stonylab 3 Prong Swivel Clamp and Bosshead Clamp Holder Set, Sturdy 3 Prong Single Adjust Extension Clamp and Boss Head Clamp Holder