1. Material: aluminum alloy, nylon, metal 2. Weight: about 2900g/set 3. Size: about 440x320x100mm/set 4. Purpose: leak detection of water tank 5. Features: precision machining, accurate measurement, simple operation, a variety of specifications of coolant cover, suitable for use in a variety of different models, 520 mm rubber hose, increase the scope of use, accurate pointer indication, nylon connector, soft and firm, durable, metal joints, rust-proof, wear-resistant and durable, self-locking joints, convenient connection, good sealing 6. Contains: 10 nylon test heads, 3 metal connectors, 2 plastic sleeves, 1 small tool, 1 pressure gauge, 1 thermometer