E-outstanding 4-Pack Steel Wire Test Tube Clamp 145mm Fit for 5-40mm Tube Heating Glass Tube Tongs Supplies Lab Test Tube Holder Sprung Tool

Length: 145mm Fit for: 5-40mm tube Material: Stainless Steel Surface treatment: Chrome plated Package includes: 4 x Test Tube Clamp Usage: the tube holder is used to fix the tube when it is hot and inaccessible.

Features

• Made of high-quality stainless steel, exquisite workmanship, not easy to rust.
• Spring operated automatic closing mechanism ensures safe holding under correct pressure.
• Lightweight, space saving, self-locking clip, easy to use.
• Durable enough, suitable for students to use in the classroom or laboratory.
• Package includes: 4 x Test Tube Clamp