Feature:1. Natural rubber is processed and made, which has the characteristics of strong elasticity, soft hand feeling and rapid inflation.2. The components are tightly connected and airtight; the material is preferred, and the aging resistance is strong.3. The thickened air sac is equipped with an explosionproof net rope to prevent the air sac from bursting due to excessive air pressure.4. Laboratory suction ball is made of highquality rubber, nontoxic, odorless, safe and durable.5. Easy 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.Specification:Item Type: Rubber Squeeze Bulb Material: RubberPurpose: 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.Product Composition: It is composed of rubber tube, air sac, choke valve, rubber ball and air inlet valve.Overall Length: Approx. 650mm / 25.6in.Package List:1 x Rubber Squeeze Bulb