2X New Rubber Stopper Bungs Laboratory Solid Hole Stop Push-in Sealing Plug 9 37 x 45mm

Material: Rubber Color: Beige Size: 9# 37 x 45mm 100% brand new Can be used for test tube flask stopper or other bottles Package included: 2x rubber test tube plug Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.