【Aluminum Alloy Structure】Our rescue tripod is made of aluminum alloy with a high strength-to-weight ratio, achieving a balance between strength and weight; the top cover is die-cast, with a tight structure without cracks or defects. 【Adjustable Support Legs】The construction tripod winch kit features a retractable and adjustable support pole between 1.34m (4.4ft) - 2.14m (7ft), suitable for various terrains, uneven coastlines and narrow spaces. The outriggers are equipped with safety chains for added safety. 【Self-locking and Anti-fall】This rescue tripod is equipped with a 1200/1800/2600 lbs self-locking winch for ascending and descending, and an anti-fall device with a durable hook, which will automatically lock and protect personal safety when the descending speed suddenly accelerates. 【Large Load Capacity】The maximum lifting weight of the manual winch is 180 kg (396 lbs). It has a 30-meter (98-foot) long steel cable. The gear ratio of our winch is 5:1, which provides efficient power transmission for easy lifting. In addition, the blocking force of 1800 kg (3968 lbs) ensures safe and stable operation. 【Multiple Uses】This rescue tripod can provide safe passage and emergency rescue in traditional confined spaces, and is very suitable for use in wells, sewers, underground pipes and tunnels. Its simple and precise design makes it an indispensable tool in rescue operations.