GPI Thread Finish: 20-400Shell Material: PolypropyleneLiner Material: PE Cone LinedCap Color: Black Magnakoys 20-400 Polycone 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 !!!!
