All-aluminum construction， holds camera during any physical activity while providing instant access for picture-taking;Includes PROplate quick-release plate， which fits in most ARCA-type and Manfrotto RC2 tripod heads;Works with DSLR， compact and point-and-shoot cameras;Attaches to any backpack strap， belt or strap up to 3 inches wide and 0.5 inches thick;Quick-release lock withstands over 200 lbs. of force