Features: Striped non-slip twisting design, anti-slip and easy to twist. Dual interface colloction freely, standard 1/4 screw port and interface for Hero are avaliable for optional, used with tripod. Made of high quality ABS plastic material, stable performance and high reliability, sturdy and durable for long service life. Compact in size and lightweight, does not take up any space, and it is convenient to carry and use. Simple design, easy to install and disassemble, full of convenience and practicality. Universal adapter interface, suitable for Hero 10 9 action cameras. Specifications: Material: ABS Mount Base: Approx. 3.2x3.1 for cm/1.26x1.22 inch Conversion Adapter Base: Approx. 3.6x3.2 for cm/1.42x1.26 inch 1/4 Chassis: Approx. 3.5x3.1 for cm/1.38x1.22 inch Long Screw: Approx. 5.9x2.4 for cm/2.32x0.94 inch Applicable Model: for Hero 10 9 Action Cameras Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Mount Base for Hero Cameras 1 Piece 1/4 Chassis 1 Piece Conversion Adapter Base 1 Piece Long Screw