Description Are you looking for a practical plug for your experiment? want a reliable test tube plug? If your answer is yes please come and take a look at this product. This test tube is made of high- quality material, which has the long service life. It will meet your experiment sealing needs. Features - Color: Beige. - Material: Rubber. - Size: About 2. 70X2. 50X1. 80cm/ 1. 06X0. 98X0. 71in. - The rubber plug is made of quality rubber material, which is durable and practical for a long time use. - The set includes 50pcs sealing plugs, which can greatly meet your practical needs. - Features good sealings and durability, which will not do damage to the bottle or test tube. - Suitable for, industry, scientific research test tube use. - material, which has the good waterproof and high temperature resistant effect. - Color: Beige. - Size: 2. 7X2. 5CM. Suitable for medicine, chemical industry, scientific research test tube use. The rubber plug is made of quality rubber material, which is durable and practical for a long time use. material, which has the good waterproof and high temperature resistant effect. Features good sealings and durability, which will not do damage to the bottle or test tube. The set includes 50pcs sealing plugs, which can greatly meet your practical needs.