◆ Thank you for viewing! We will handle any initial defects. ◆ Shipping to Hokkaido, Okinawa, and remote islands requires additional postage. Please comment in the comment section if you are applicable. ◆ Product Description ◎ Color: Black ・ Highest waterproof class IP68 ・ Rust-resistant, corrosion-resistant, and strong key structure against crime ・ Over-opening prevention stopper ・ Luxurious interior with high cushioning ・ Large capacity to fit a full-face helmet ・ Easy and convenient connection with the bike 【Product Details】 Product size: 57 x 52.5 x 36.5cm Inner diameter: 56.5 x 52 x 36cm Weight: 9.9kg Capacity: 100L Material: Aluminum alloy 【Accessories】 ・ Mounting base x 1 ・ Reflectors 2 types x 2 each ・ Nut and bolt set x 4 ・ Keys x 2 ・ Backrest ○ With backrest The backrest firmly supports the back and provides comfortable riding even during long rides. The cushion on the back provides excellent comfort, reducing fatigue and helping to achieve a comfortable bike life in various situations such as long-distance touring. ○ Achieves complete waterproofing Our rear box conforms to the highest waterproof class, IP68, and prevents water from entering. The IP68 standard guarantees complete waterproofness for up to 30 minutes at a water depth of 1 meter. This allows you to securely protect the luggage inside the rear box even in heavy rain or splashes. ○ Rust-resistant and corrosion-resistant The main body of the rear box is made of aluminum alloy material. It is rust-resistant and durable, allowing you to ride your bike with peace of mind even on rainy days. In addition, the key structure is difficult to pick, making the rear box highly secure. By locking it even when you are away from your bike, you can securely protect the items inside the box. ○ Over-opening prevention stopper Based on customer feedback, we have adopted an over-opening prevention stopper. The top lid used to open too wide and scratch the bike body, but with the over-opening prevention stopper, that is no longer a problem.