Features: Uses good quality plastic, sturdy and durable.  Small body and easy to use. With this, it becomes easy to inflate or deflate. With leak, gives you excellent anti-leakage performance. Can be used for inflatable boat whose caliber is 23.9mm. It is convenient to install. Suitable for JILONG inflatable items.   Specification: Condition: Brand New Material: Plastic Color: Black Inner Diameter: Approx. 22mm / 0.9inch Weight: Approx. 20g   Package List: 1 * Inflatable Boat Air