Item Type: Rubber Squeeze Bulb _x000D_ Material: Rubber_x000D_ Purpose: The rubber trachea is connected to the instruments and equipment that need to be refilled (automatic burette, safety refueling syringe, etc.), and the rubber ball is manually squeezed to play a positive pressure to pressurize the instruments and equipment to get the required pressure._x000D_ Product Composition: It is composed of rubber tube, air sac, choke valve, rubber ball and air inlet valve._x000D_ Overall Length: Approx. 650mm / 25.6in 1Natural rubber is processed and made, which has the characteristics of strong elasticity, soft hand feeling and rapid inflation. 2The components are tightly connected and airtight; the material is preferred, and the aging resistance is strong. 3The thickened air sac is equipped with an explosion?proof net rope to prevent the air sac from bursting due to excessive air pressure. 4Laboratory suction ball is made of high?quality rubber, non?toxic, odorless, safe and durable. 5Easy to operate, the rubber air pipe is connected to the instruments and equipment that need to be refilled, and the rubber ball is manually squeezed to play a positive pressure.1 x Rubber Squeeze Bulb