Thank you for viewing! This is an IROTEC dumbbell set. *Please purchase both ① and ② as a pair. The logo on the rubber part has some discoloration (see photos). The grip part is clean with no rust (in my opinion). Also, the grip part uses a rotating grip, which allows for smooth handling of wrist extension and flexion during exercise. *Please note that this item is also listed on other sites, so it may be sold out.