GLOBE® SCIENTIFIC TUBE CLOSURE FOR 13 MM VACUUM AND TEST TUBES, SOLD AS 1000/BAG GLOBE 113150BGlobe Scientific Tube Closure For 13 Mm Vacuum And Test Tubes, Sold As 1000 Bag Globe 113150B These Pierceable Caps Are Great For Recapping Vacuum Blood Tubes And Test Tubes. They Are Produced From Thermoplastic Elastomer (Tpe) And Can Easily Be Pierced With A Syringe. 1,000 Blue Pierceable Test Tube Caps Per Bag. Cap, Pierceable Closure F 12 13Mm Tubes Blu (1000 Bg) Globe Scientific Tube Closure Thermoplastic Elastomer Pierceable Plug Cap Blue 13 Mm