Card case only. Strap is not included. ※Help mark is not included. Help marks are distributed at stations, etc. Please ask your local municipality for details. Size: Approximately 11cm x 7cm You can put cards, photos, etc. inside. There is a hole, so you can put your favorite chain through it and hang it. Made overseas, so there may be some scratches. Please refrain from purchasing if you are concerned about this. Shipping will be via Rakuraku Mercari Bin or Yu-Yu Mercari Bin. You can put photos in it and decorate it for your otaku activities, and I think you can use it for various things. It seems like it can also be used as a Cheki case to hold Cheki photos. When I put my Help Mark in it, it was the perfect size. I don't know if it will fit all Help Marks, but I think it can also be used as a case for Help Marks. Card case, card holder, Cheki case, Cheki holder, Help Mark case, trading card case, trading card case, plastic card case #PIYO card case