Sunwayfoto Et-01 Carbon Fiber Tripod Extension Tube, 22.05 Lb Capacity. CNC machined from one piece of solid metal to ensure the strength and impact-resistance of the tripod. Perfect fit and finish with good hand-feel The friction tube between leg sections are as long as 40mm which maximizes the airtightness and the legs do not bend easily when pulling up fully Seamless connection of the leg sections. Great airtightness effectively prevents dust and sand and ensures good stability and hand-feel of the tripod even after long time use 1/4" standard stud for easy camera mounting With the compact design, it weights only 119g and can be mounted on most tripods. Exquisite Workmanship, Powerful Performance Mounted on T1A10 to increase the shooting range FB-28i mounted perfectly on the ET-01 Widely applied to 3/8", 1/4" thread tripods The ET-01 Extension tube can be used in conjuction with each other Strength of the Material 1. Extraordinary corrosion resistance even under extreme conditions 2. Compared with aluminum legs, the CF ones have better shock absorption, capable of stabilizing the tripod for better shooting under emergencies 3. Carbon Fiber, extremely strong and light, weights only 1/4 of steel but with 10 times rigidnes SunwayFoto ET-01 Carbon Fibre Tripod Extension Tube - 2x 1/4" to 3/8" Bushing Adapters - SunwayFoto 6 Year Warranty Number of Leg Sections: 2 Diameter of Legs: 24mm, 20mm / 0.94, 0.79" Load Capacity: 10kg / 22.05lbs Mounting Screws: 1/4" thread