Abstract: The reusable bag includes a casing having an internal accommodation space and an opening that opens to the accommodation space, a reeling member housed in the accommodation space, a bag element housed in the accommodation space and wound around the reeling member, and a locking element configured to a lateral side of the casing. The bag element is selectively reeled out from the reeling member while the reeling member automatically exerts a force to retract the bag element, and a stopping element is configured at a top edge of the bag element that is exposed outside the casing and blocked at the opening. The locking element is engaged when the bag element is pulled out for a desired length to lock the reeling member so that the bag element is not retracted back into the accommodation space by the reeling member.

Abstract: The reusable bag includes a casing having an internal accommodation space and an opening that opens to the accommodation space, a reeling member housed in the accommodation space, a bag element housed in the accommodation space and wound around the reeling member, and a locking element configured to a lateral side of the casing. The bag element is selectively reeled out from the reeling member while the reeling member automatically exerts a force to retract the bag element, and a stopping element is configured at a top edge of the bag element that is exposed outside the casing and blocked at the opening. The locking element is engaged when the bag element is pulled out for a desired length to lock the reeling member so that the bag element is not retracted back into the accommodation space by the reeling member.