Thank you for viewing! This is a GORIN bicycle ring lock. I purchased it before, but I didn't use it and have been storing it at home. Included: 2 keys, 2 screws I do not have expert knowledge, so I cannot answer questions about whether it can be installed. Please make your judgment based on the photos. - Brand: GORIN - Type: Ring Lock - Accessories: Key - Function: Open/Close function - Material: Metal ⚫︎Please refrain from purchasing if you are concerned about minor details, as this is a used item stored at home. ⚫︎To prevent trouble, we do not accept returns, refunds, or exchanges. Please ask any questions you may have before purchasing.