15 ea Size 1 Rubber Laboratory Stoppers Fisher Scientific 14-130C 3/4 to 9/16

Premium qualtiy Fisherbrand laboratory rubber stoppers from bulk packs

Solid stoppers with no hole

Maximum outer diameter is about 3/4 inch, bottom diameter is 9/16 inch, length about 1 inch

May have minor mold flashing on ends, just rub off with your fingers