CAP, SNAP UNIV POLY GRN (1000/BG) Mckesson Universal Polyethylene Snap Caps Ideal for recapping most 12 mm, 13 mm and 16 mm evacuated glass blood collection tubes Designed for easy-on and easy-off use, featuring double thumb tabs Flexible closures protect from aerosols of highly infectious microorganisms Guard samples against cross-contamination and laboratory work areas against infection and spillage Precision-molded, low-density polyethylene (LDPE) designed to fit firmly on the tube Closures remain sturdy under most rigorous laboratory procedures, including centrifugation Color-coded for easy sample identification Not suitable for autoclaving Packaged: 1000 Per Bag