Abstract: Provided is a water absorbent sheet retaining mat which can retain a water absorbent sheet easily and surely. A water absorbent sheet retaining mat for retaining a water absorbent sheet having a first polygonal contour, includes: a mat member having a second polygonal contour defined by mutually opposing a first main plane and a second main plane; and at least one retaining member having a slit member including at least one slit formed in a top surface at a predetermined height from the first main plane for accepting a part of perimeter of the water absorbent sheet being inserted therein, wherein the water absorbent sheet is laid on the first main plane, and then the above purpose is accomplished.

Abstract: A connector for an animal has a stopper mechanism for enabling or disabling a slide bar to be pushed back. The connector for an animal includes a hook member; a stem portion extending from an end of the hook member in a first direction; a slide bar for being reciprocated in the first direction to open or close the hook member; a lock member for being installed around the stem portion to rotate therearound with the first direction as a rotation axis; and an operating member for being connected to the slide bar so as to protrude in a second direction perpendicular to the first direction, the lock member including a cylindrical member with a cylindrical space formed therein for housing the stem portion rotatably and projection extending from a part of the hook member side end of the cylindrical member toward the hook member by a predetermined length.