Rubber Stopper, #6.5, solid

You will always have the right size rubber stopper on hand with this 2 lb package of assorted solid, 1-hole and 2-hole stoppers ranging in size from #00 to #8. You get 60 stoppers total.

These #6.5 rubber stoppers are 27-34 mm diameter with one 5 mm diameter hole.

These 250 ml glass Erlenmeyer flasks can be heated directly in an open flame. Essential for chemistry labs!

These 500 ml HST Erlenmeyer flasks are made of high-quality borosilicate glass that can be heated directly in an open flame.

These #0 rubber stoppers are 13-17 mm diameter. #0 rubber stoppers fit large test tubes.

These #5 rubber stoppers are 23-27 mm diameter.

These #3 rubber stoppers are 18-24 mm diameter. #3 rubber stoppers fit liter soda bottles.

Pack of two test tubes.

These # 6.5 rubber stoppers are 27-34 mm diameter with two 5 mm diameter holes.

These #8 rubber stoppers are 33-41 mm diameter.