Gas sampling bladders, rubber bladders, are mainly used in the laboratory to collect all kinds of gas necessary equipment, and perfect and wonderful medical industry. It is good helper for your laboratory, and it is perfect for storing gas. Features - Color: Beige.- Material:Rubber.- Size:30.00X14.80X2.00 cm/11.79X5.82X0.79 inch. - The balloon bladder is made of high-quality natural rubber, which has better performance and longer service life.- It is wonderful and good helper for your laboratory, and it is perfect for storing and collecting gas.- Adopts precision production to increase the stable characteristics and high reliability.- It has uniform texture and strong plasticity. Beautiful appearance, good sealing, superior aging resistance, long service life and other characteristics.- Gas sampling bladders, rubber bladders, are mainly used in the laboratory to collect all kinds of gas necessary equipment, also suitable for medical industry, multipurpose and useful. Packing list: 1 x laboratory balloon bladder