OCEAN tripods are designed and built for professional performance, maintenance-free durability and resistance against seawater, humidity and other aggressive natural environments. Precision-tooled aluminum parts have a corrosion-resistance finishing, while specially redesigned leg collars on the 6X carbon fiber legs protect each section of tube against sand, dust and mud, and expel any water trapped inside tube sections by working as an air cushion. The GT3542LOS is a modular Systematic tripod, with a flat center disk that can be interchanged for center columns, leveling bases and other components designed for specific applications. A ratchet lever lock makes interchanging components fast and easy, while a new secondary safety catch protects center components and attached camera equipment against accidental damage, even if the center component is inadvertently left unlocked. Adding to the set up speed and convenience - vitally important in extreme conditions and remote locations - is the Ocean G-Lock system, which requires only a quarter turn to lock or unblock each leg section. Systematic tripods are Gitzo"s strongest and most stable, with a number of design and construction features combining to offer unparalleled load capacities: the triangular design of the Systematic shoulder element distributes weigh more safely, efficiently and evenly than ever, and a new bonding process between leg tubes and metal components has almost doubled payloads. Built-in spiked feet add stability and safety, without sacrificing set-up speed. The GT3542LOS is a Gitzo Series 3 tripod. Specifications: 4 Leg Sections; Maximum Height 58.07 in; Minimum Height 3.54 in; Closed Length 22.83 in; Weight 4.41 lbs.