Max load capacity: 25 lbs Travel Distance: 15 inches Twist lock collar 10x layer Carbon Fiber construction Anti-rotation channel for safety Made in the USA Integrated hook The ProMediaGear TR42C Pro-Stix Carbon Fiber Center Column is designed for professional photographers and videographers who wants to transform their regular 42 Series Carbon Fiber Tripod. The TR42C allows you to change the flat apex into a center column for the much-needed height. This attachment increases the height of your 42 Series tripod by 15 inches. This center column has a regular 3/8"-16 standard tripod mount for your ball heads, video heads, and other accessories. Another neat feature of this center column is the twist lock collar. This secures the center column in place easily. Lastly, the integrated hook allows you to add a camera bag or sand bag for added stability while shooting. The only downside of using any Pro-Stix Center Columns is the inability to use a tripod leveling head. All ProMediaGear tripods and center column are made in the USA. It also comes with a 5-year warranty. Get yours today!