construction: Both poles 12mm carbon fibre tubing, lightweighted and strong, with stainless steel connectors for durability and corrosive resistance Versatiled design: ZS52727-E1D1 is equipped with 1 / 4 screw holes for easy installation; Both models feature side-locking screws for added security Multiple Lengths Available: Three size available Multiple lengths available: Three size (116mm, 216mm, 316mm) available to meet your specific needs, for panoramic shots Portable and: lightweighted, these poles easy to transport and can be quickly assembled or disassembled for storage Wide compatibility: Perfectly compatibles a wide ranges of sports cameras and accessories, ensuring seamlessly integration with your existing equipment