Check the listing for details. 4 Pack of Solid Rubber Stoppers-Size 11 Black No-hole. Condition: New, Made in ..USA. Listed at 18.99 USD. YOUR BID IS FOR (4) SIZE 11# BLACK SOLID RUBBER STOPPER, WITH NO HOLE. Top diameter is: 56 mm (Approximately 2 3/16")Bottom diameter is"46 mm (Approximately 1 13/16")Height: 25mm (Approximately 15/16") Black solid and resilient premium rubber stopper. These are used for laboratory, household, and other applications too. If you need, but one or two stoppers, please inquire... IF YOU NEED MORE THEN 3 SETS OF 4, WE CAN GIVE YOU A BETTER PRICING.