To eliminate low cycle fluctuation causing seasickness phenomenon by hand shake prevention for a domestic camera.

An arm rest 1 for stably supporting elbows is connected to a vertex angle portion A of an intersection of a foldable triangular pole configured to hold vertex angle portions B and C on a base by a string hung from a waist belt or a neck. The arm rest 1 is extendable along the folded pole. On the other hand, the extended support pole and a rotation restriction mechanism are configured to hold an angle to stably support and receive the elbows. The arm rest 1 includes a flat part for mounting the elbows thereon, and an action point to receive weighting and a fulcrum connected to the pole are shifted to ensure stability during use.