Product Details: 1.Material: Rubber 2.Color: Beige 3.Size: 15 sizes(Shown as picture) 000#:Top Dia: 13mm,Bottom Dia:9mm ,Height:17mm 00#:Top Dia: 15mm,Bottom Dia:11mm ,Height:21mm 0#:Top Dia: 17mm,Bottom Dia:13mm ,Height:24mm 1#:Top Dia: 19mm,Bottom Dia:14mm ,Height:26mm 2#:Top Dia: 20mm,Bottom Dia:15mm ,Height:26mm 3#:Top Dia: 23mm,Bottom Dia:17mm ,Height:26mm 4#:Top Dia: 26mm,Bottom Dia:19mm ,Height:28mm 5#:Top Dia: 29mm,Bottom Dia:22mm ,Height:28mm 6#:Top Dia: 33mm,Bottom Dia:25mm ,Height:28mm 7#:Top Dia: 37mm,Bottom Dia:28mm ,Height:30mm 8#:Top Dia: 42mm,Bottom Dia:32mm ,Height:30mm 9#:Top Dia: 45mm,Bottom Dia:37mm ,Height:30mm 10#:Top Dia: 50mm,Bottom Dia:41mm ,Height:32mm 11#:Top Dia: 56mm,Bottom Dia:46mm ,Height:34mm 12#:Top Dia: 62mm,Bottom Dia:51mm ,Height:38mm 13#:Top Dia: 68mm,Bottom Dia:55mm ,Height:38mm 14#:Top Dia: 73mm,Bottom Dia:60mm ,Height:41mm 15#:Top Dia: 81mm,Bottom Dia:68mm ,Height:41mm 16#:Top Dia: 85mm,Bottom Dia:74mm ,Height:42mm 17#:Top Dia: 95mm,Bottom Dia:78mm ,Height:45mm 18#:Top Dia: 101mm,Bottom Dia:82mm ,Height:49mm 19#:Top Dia: 111mm,Bottom Dia:88mm ,Height:53mm 20#:Top Dia: 118mm,Bottom Dia:92mm ,Height:56mm Conversions: 1 mm= 0.039inch, 1 inch=25.4 mm 4.Can be used for test tube, flask stopper or other bottles Package include: 1/5/10pcs x Rubber plug (We will ship according to your order Notice 1.Please allow 1-3cm error due to manual measurement.Pls make sure you do not mind before you bid. 2.The color may have different as the difference display,pls understand. _x000D_