I purchased this online without considering the 55L size. It's new and unused because I only checked the contents and gently closed the packaging. I'm selling it because it's too big for me. Manufacturer: OneStep About this product: ✅【IP68 Waterproof】 This product has the highest level of dustproof grade 6 and waterproof grade 8. It protects your important luggage from rain and dust. You don't have to worry about sudden changes in the weather. ✅【Cushioned Interior】 The PVC fabric protects your luggage from impact. Nylon belts are included for secure fastening. The fine embroidery on the interior creates a sense of luxury. ✅【Easy Connection to Motorcycle】 You can securely fix it to your motorcycle with the lock on the bottom of the case. It's easy, durable, and safe. 【Load Capacity 80kg】 Made of A5052 aluminum alloy, you can safely carry heavy luggage. ✅【Product Details: 55L】 【External Dimensions: W46.5 x D38.5 x H31.5cm】 【Internal Dimensions: W46 x D38 x H31cm】 【Weight: 5.8kg】 【Material: Aluminum Alloy】 ✅【～Regarding Vehicles and Carriers Not Compatible with This Product～】 Some carriers are not compatible. Please understand that this product is not compatible with all carriers due to the structure of the plate. ✅【～How to Handle Cases Where Installation is Not Possible～】 ① Change to a compatible carrier ② Drill holes in the mounting plate (at a motorcycle shop, etc.) Amazon Reference Price: 16,940 yen (including tax) at the time of listing https://www.amazon.co.jp/バイク用リアボックス-取付ベース付-フルフェイス対応-バイクボックス-トップケース/dp/B09TP5JVS5/ref=zg_bs_g_2313338051_d_sccl_1/358-2273999-4438142?th=1