PS; Sample tubes--this teaching tool set is an excellent resource for explaining concepts in books in visible way, making it easier for students to understand, plastic sample vials; Small plastic vials--convenient size of plastic vials with scales and stoppers for precise sampling and measurement, mini test tubes; Sample tube--with various test tubes and lids, this set is versatile and can meet a variety of needs in your daily life, sample vials; Plastic test vials--allows for long term sample preservation, made with sturdy materials, plastic clear vials; Laboratory tubes--ample storage space provided by a 10ml capacity, pack of test vials for versatile experimental requirements, test tube with lid
What's in the box
20 x Plastic Vials Test Tube
