SImple monopod mount for gopro camera. Has captive tie wrap holes. Used successfully in Bahamas for Shark dive, worked great. Print solid to avoid any air cavity. Printed in PLA on replicator 2, where I get no shrinkage, so fit is very good, and captive nut is tight.Print Solid. Orientate so that concave face is down, auto-generated STL images in thumbnails are misleading, do not print on side as in image. Print with supports, and clean out cable tie holes with small file. Clean out threaded shaft hole with the threaded shaft of a gopro mount bolt. Clean out captive nut recess with a small sharp file. 5mm or thinner cable ties. Mount round thinnest shaft on monopod. Insert a flat sticky foam to impove grip between mount and shaft if necassary. Use 2 extra standard Gopro shaft sections between camera and mount to allow camera to face forward or in line with monopod. http://youtu.be/CEg5qBDiXZc