5pcs Spring Steel Test Tube Clip Clamp Labs with Finger Grips Stoddard Laboratory Experiment Testing Holder Tool,14.5cm / 5.7inch
- Quality plated steel wire test tube holder, exquisite workmanship, not easy to rust..
- Finger grips make use comfortable and secure,It can protect your hand when doing a experiment..
- A spring-action self-closing mechanism to ensure a safe hold with correct pressure..
- The maximum diameter test tube that can hold is less than 5 cm. Fit for: 5-40mm tube..
- The test tube holder is used to hold test tubes when they are hot and untouchable..