GPI Thread Finish: 20-400
Shell Material: Polypropylene
Liner Material: F217 PE Foam
Cap Color: Black
Magnakoys 20-400 Continuous Thread Black Screw Closure Caps Fit to Cap your 1 and 2 Ounce 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 !!!!