Rubber Stoppers – Large Black Laboratory Stopper Sz 9 10 11 12 13
Natural Black Rubber Stoppers – Sold as each – Buy more and save.# 8 Top:40mm Bottom 32.5mm# 9 Top: 46mm Bottom 38mm #10 Top: 53mm Bottom 45mm#11 Top:57mm Bottom 47mm #11.5 Top:63mm Bottom 50mm#12 Top: 64mm Bottom 54mm#13 Top: 68mm Bottom 58mm