This is a pack of 10 quality test tubes with high grip tops. We use them to manufacture test tube cocktails. (If you need any advice in this area please ask!) This tubes are made from thick walled polystyrene (PS), Food Grade, Suitable for liquids, Non Sterile, Round bottomed Rimless, Tough & Reuseable Machine washable (tops and tubes) and leakproof when the stopper is applied.
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