※ As time goes by, scratches appear on the plastic test tubes, and the test become opaque. Glass tubes do not have these problems. ※ This set of glass tubes is made of high quality borosilicate glass. High temperature resistance and high light transmittance. The wall thickness is uniform and can be evenly heated. ※It can be used not only in the laboratory, but also other uses. It can be used in the kitchen to load seasonings. It can be used in the bathroom for bath salts. Can be filled with candy and used at parties. Can be used to breed small plants, succulents, can be used to make cocktails. More uses are waiting for you to discover! Specification - Material: glass - Color: transparent - Size: 25*200mm 20*200mm 15*150mm - Capacity: 80ml 50ml 20ml - Quantity: 12pcs Precautions for using test tubes 1. Do not exceed 1/2 of the tube capacity when loading the solution, and do not exceed 1/3 of the tube capacity when heated. 2. When dropping the liquid into the test tube with a dropper, it should be suspended, the dropper should not protrude into the test tube. 3. Use a test tube holder when heating the tube. The tube mouth cannot be facing the person. 4. Preheat before heating to prevent the tube from bursting. Heat evenly. 5. The tube should not be washed after heating without cooling to room temperature. 6. Heat the tube over hottest part of fire. Warm tips ♥ Glass test tube is fragile, take it carefully. ♥ Keep the test tube out of reach of children to avoid breakage and scratching the child's skin. Package includes 4 * glass test tube 25*200mm with cork stopper 4 * glass test tube 20*200mm with cork stopper 4 * glass test tube 15*150mm with cork stopper If the test tube is damaged during transportation, please contact us for a replacement.
K**M
Good test tubes but 3 out of 4 of the largest tubes arrived broken
I know that I can send these items back but I need to use them now and for such low cost items is it worth the effort? The tubes arrived well packed but with the smaller tubes were wrapped in a layer of tissue paper and nested in the larger tubes and it was 3 of the larger tubes that were smashed. The tubes themselves are a good weight and don't have a lip.
J**J
Arrived smashed.
Two glass test tunes were broken on arrival, probably because the packaging offered so little protection.Also the diameter of the tubes varied.Not worth sending back but wont be buying again and not recommended.
G**M
Great value
Well packaged. Delivery on time. Same as pictures. Nothing to complain.
A**R
Poor Packaging
Package contains 3 sets of tubes ( smaller inside the small, with inside the biggest) but the outer ( biggest one) has been damaged. Others are fine- looks like a good quality but poor packaging.
S**R
Broken tubes delivered
Bought two times, first time 1 tube broken, still acceptable. Second time 4 tubes broken, frustrated as I intended to use it urgently. So I have to buy a third one to replace, instead of return it.
K**N
Ok
Great product, yet packaging wasn’t the best as two of the glass tube broke on its arrival. Could be wrapped with bubble wrap instead of thin sheets of paper!!
N**E
Sizes not 100% off by a mm sadly but good lengths
2 of the tubes were smashed on delivery unfortunately but needed the others and they seem to be slightly different in sizes , only by a mm or 2 but has made a difference unfortunately
G**T
Test Tubes
Unfortunately 3 of the test tubes arrived brocken but as I am using them to hold plants to take photographs I still have enough for my needs.
Trustpilot
2 weeks ago
2 months ago
