T2840CK belongs to Sunwayfoto Knight Series Carbon Fiber Tripods. Specially designed without center column for photographers who have extremely high requirements of professional performance from a super compact tripod.T6061 Aluminum and carbon fiber main body material, elaborately CNC machined, providing great stablity of the tripod. Folded dimensions of 3.53.519inch(9948cm), can be put into regular trolley case easily for traveling. 4 Leg Sections with tube diameters of 0.75inch(19mm), 0.87inch(22mm) 0.98inch(25mm) and 0.98inch 1.1inch(28mm), reaching as low as 2.75inch(7cm) and max height of 51.1inch(130cm). 3 Leg Angles of 23, 55 and 85 for daily shooting. Compatible with tripod extension center column when higher suppport height is needed. The lightweight but strong carbon fiber leg tubes, combined with 40mm lengthened friction tube shims between leg sections, maximize isolation and rigidity of the joints of fully extended legs. Load Capacity of 39.7lb(18kg). Sealed Twist Locks effectively prevent water, sand or dust from entering the locks and tubes, in this way extending the longevity of the tripod. Stable joints design effectively prevents loosening up of the tripod legs from the apex due to frequent use. Included strap can be attached on the hook cross bar under the apex to carry or hang a bag or backpack to further stabilize the tripod in windy conditions or on bumpy roads. Vent holes at the upper part of the leg tubes ensure efficient air inflow and exhaust when pulling or pushing back the leg tubes in order to extend and fold the tripod swiftly and smoothly. Quick action twist locks, wrapped with silicone for better grip, require only 1/4 of a turn to loosen or tighten.