Description These laboratory support rings are very good laboratory assistants and are very practical. Application: This laboratory support ring is suitable for biological and chemical laboratory test bed to support a variety of beakers, flasks, etc. Lightweight and portable, it is very convenient for you to carry. Features - Material: Iron. - Size: 21.00X7.50X3.50cm/8.25X2.95X1.38in. - Suitable for being sent as a gift for friends or family who love experiment , they will love it. - High-grade material: these support rings are made of high-quality iron which are , waterproof, reusable and can be used for a long time. - Suitable for beginners or professional use, also the students. Lightweight and portable, it is very convenient for you to carry. - A good tool for science study, can support various chemical experiments. - It is a good choice as a gift for your kids at school if they do experiments in laboratory. Suitable for being sent as a gift for friends or family who love experiment , they will love it. High-grade material: these support rings are made of high-quality iron which are , waterproof, reusable and can be used for a long time. Suitable for beginners or professional use, also the students. Lightweight and portable, it is very convenient for you to carry. A good tool for science study, can support various chemical experiments. It is a good choice as a gift for your kids at school if they do experiments in laboratory.