These are Ko-ken impact sockets. I am selling them because I no longer use them. ◯ 12-point socket 14405M-10 ◯ 12-point socket 14405M-13 ◯ 12-point socket 14405M-17 ◯ 12-point socket 14405M-19 ◯ 12-point socket 14405M-24 ◯ 12-point socket 14405M-30 ◯ 6-point thin-walled semi-deep socket 14301X-24 There are 7 pieces in total. Please check the photos and understand and accept the condition before purchasing.