Test Tube Clamp: suitable for holding small flasks, small cylindrical glass tubes, test tubes, condensers and more; adjustable jaw clamp. 3 Prong Finger Clip: three-claw design, hold the equipment more firmly; it is a great experimental equipment; Laboratory 3 Finger Clamp. 3 Prong Flask Clamp: with a long-handle, you won't be hurt during experiment, prevent your hands from heat; Laboratory Adjust Jaw Clamp. Laboratory Retort Stand Clamp: the adjustable clamp base can be easily fixed on the table, easy to operate, 3 Prong Clip. Use scenarios: - Securely hold test tubes, condensers or small glassware during heating or reflux in a chemistry setup, keeping hands away from heat and reducing accidental spills. - Fix narrow-neck flasks or tubes during transfers, sampling, or titration to maintain stable alignment and improve safety. - Attach the retort stand clamp to a lab table or stand for hands-free operation of apparatus during experiments that require continuous monitoring or multi-piece setups.