Abstract: This foldable bag (A) includes a container main body (B) having: a set of foldable surfaces (5) positioned on a front surface and a rear surface when the foldable bag is in a folded state; inner bottom pleats (6) formed from one longitudinal end side (M1) of each of the foldable surfaces toward an inner other end side, and having a width corresponding to a bottom gusset (20); a plurality of sets of top inner pleats (7,8) formed from the other longitudinal end side (M2) of each of the foldable surfaces toward an inner one end side, and having pleat widths that become gradually narrower toward the inner-facing side. After use, the container main body can be flipped over and folded into a flat rectangular shape by tensioning bundling end parts (C), at which side end parts (4) are sealed, in a direction pulling the bundling end pails apart.

Abstract: This foldable bag (A) includes a container main body (B) having: a set of foldable surfaces (5) positioned on a front surface and a rear surface when the foldable bag is in a folded state; inner bottom pleats (6) formed from one longitudinal end side (M1) of each of the foldable surfaces toward an inner other end side, and having a width corresponding to a bottom gusset (20); a plurality of sets of top inner pleats (7,8) formed from the other longitudinal end side (M2) of each of the foldable surfaces toward an inner one end side, and having pleat widths that become gradually narrower toward the inner-facing side. After use, the container main body can be flipped over and folded into a flat rectangular shape by tensioning bundling end parts (C), at which side end parts (4) are sealed, in a direction pulling the bundling end parts apart.

Abstract: There is provided a cleaning apparatus which is made up of a hand brush 11 and a box 16. The hand brush 11 has a thick plate 13 provided with a brush part 12 around a peripheral surface thereof, and a grip bar 14 connected to a portion of the peripheral surface of the thick plate 13 at the head edge thereof. The grip bar 14 has an engage part 15 at each side of a head portion thereof. Each engage part 15 protrudes in an axial direction. The box 16 has a peripheral wall 17 and a bottom wall 18. The periphery wall 17 is provided with engage grooves 19 at an inner surface thereof. Each engage groove 19 receives the engage part 15 at a position where a head edge of the brush part 12 of the hand brush 11 makes no contact with the bottom wall 18.