- 20 U40 plastic tubes 1 ml, model PT6391, sterile and individually blister-packed - Extended black graduation, easy to read for greater measurement accuracy - Made of polypropylene, polyethylene, and lubricated synthetic rubber, safe and non-toxic materials - Pyrogen-free, latex-free, DEHP-free, and PVC-free, ideal for sensitive applications - Ergonomic design with uniform flow and highly transparent, narrow shaft - Multipurpose tool for crafts, industry, laboratory, pets, liquid application, samples, and refills - Suitable for filling lip gloss, essential oils, epoxy resins, perfumes, lubricants, sealants, and nutritional supplements - For non-medical use only. Not suitable for skin piercings or medical applications