Durable Carbon Fiber: Manufactured with high-quality carbon fiber, SIRUI AM-225 tripod kit is lightweight, sturdy and durable. Detachable Center Column: SIRUI SL-100 center column can be either connected to tripod for extra height when it's necessary or detached in seconds for lighter weight. Wide Compatibility: Both AM-225 tripod and SL-100 center column are equipped with convertible 1/4" and 3/8" screws, which makes them compatible with various photographic devices. Flexible Working Height: With the detachable 2-section SL-100 center column and extendable legs, the working height can be adjusted from 70mm/2.76" to 1200mm/47.2"+310mm/12.2". Suitable for both indoor and outdoor photography. Adjustable Leg Angle: Photographers can adjust the leg angle with the semi-automatic angle adjustment system. Non-slip Design: With wear-resistant rubber feet and retractable metal spikes, the AM-225 tripod can stand firm on different terrains. Half-turn Leg Locks: The tripod legs can be extended easily by twisting the rubber leg locks in seconds.