Description The adjustable opening of this test tube clamp allows it to accommodate different sizes of test tubes, making it a versatile tool in the laboratory. The covered jaws not only provide protection, prevent scratching to your item. The test tube clamp is made with fine workmanship, excellent texture, suitable for clamping test tubes, flask, etc. Features -Color:Silver -Material:Zinc alloy -Size:20.00X3.50X2.10cm/7.86X1.38X0.83in -The sturdy material used in this test tube holder clip ensures its durability and reliability, with exquisite craftsmanship making it resistant to bending or breaking. -This labs clamp is an essential accessory for placing condensate tubes or flasks on retort stands. -With a comfortable grip and easy operation, this test tube clamp provides a better operating experience for users. -Reasonable structure, 3 prongs, and fine craftsmanship make this test tube holder clamp very practical, bring you convenience. -Suitable for holding flasks or test tubes, this test tube clip is a necessary accessory in any laboratory.