37L rear box and a new Monolock base. Instructions for installation, opening, and closing are included in the manual. Both were purchased at a motorcycle用品店. The box cost around 35,000 yen. It was very useful as it could fit two jet helmets. When opening and closing, as shown in the 14th image, pull the bottom of the handle towards you a little, and it will open and close with a "thunk." I bought a new base intending to change motorcycles, but it seems unlikely for the time being due to moving. There are also many small scratches, so this is for those who don't mind. GIVI top case, black and red, with two keys. - Brand: GIVI - Color: Black/Red - Accessories: 2 keys - Type: Top case Thank you for viewing.