20PCS 40ml Glass Test Tubes with Cork Stoppers,20×180mm Round Bottom Test Tube for Scientific Tests,Candy,Bath Salt,Cultivated Plants
- Product Content:20pcs 40ml cork stopper round bottom glass test tubes..
- Capacity:40ml.Tube size:20×180mm.Clear test tube length:17.8cm/7in.The INNER diameter of tube is 0.7in..
- Usage:Glass test tube can be used to store candy,granular food materials,liquid,sample,powder or cultivated plants.The transparent test tube is suitable for various scientific tests..
- Material:Glass test tubes can be heated.Test tubes are made of borosilicate glass..
- Features:The cork has a good seal and the cork stopper test tubes can be used repeatedly after cleaning..