Lightweight aluminum bicycle cargo carrier with a 50kg weight capacity, excellent stability with 3-point support. Purchased from Rakuten. It's new. I didn't use it because I bought a bicycle that already has a carrier. I'm selling it at a bargain price. It cost about 4000 yen when I bought it. Here is the product link: https://item.rakuten.co.jp/worldshop01/d0311-15a/?ultra_crid=d0311-15a&variantId=d0311-15a&scid=af_sp_etc&sc2id=af_113_0_10001868&icm_acid=255-776-8501&icm_cid=16058242721&icm_agid=135536277329&ifd=57&gclid=CjwKCAjwtrXFBhBiEiwAEKen1wgKyET5wv_a4FqzdVmd8celX6sxILloAz_f5UWqIcjqts5IWnq8yxoCvW8QAvD_BwE&iasid=wem_icbs_ - Weight Capacity: 50kg - Material: Aluminum alloy - Mounting Type: Detachable - Support: 3-point support Thank you for looking.