1. Material: zinc alloy 2. Function: allows air to flow between the tire and the inflator, helping to monitor and maintain correct tire pressure. 3. Locks onto the valve stem with a lever, allowing for inflation without continuous pressing. 4. Simple brass snap-lock clamp, sturdy and durable. 5. Suitable for 1/4-inch NPT threaded connections. 6. Weight: 40 grams
