Assorted Rubber Stoppers with One Hole, 50/PK

Pack of 50 assorted orange rubber stoppers each with one 5mm diameter hole. Made of superior quality, long lasting rubber that is resistant to acids, alkali and ammonia. Contains the following quantities and sizes (bottom diameters):

7 stoppers each of 5 different sizes: 8mm, 9mm, 11mm, 13mm, 15mm
3 stoppers each of 5 different sizes: 17mm, 21mm, 23mm, 25mm, 29mm