GPI Thread Finish: 22-400Shell Material: PolypropyleneLiner Material: F217 PE FoamCap Color: Black Magnakoys 22-400 Continuous Thread Black Screw Closures to Cap your 8 Dram vials and 4 Ounce Clear and Amber Boston Round bottles with the perfect closure. See our images to determine what size cap you need for you vials or bottles. Thank you for looking !!!!
