This is a set sale of Koken impact universal joint and extension bar. ① Universal Joint Model Number (13771) ② Extension Bar Model Number (13760-75) *For ease of use, I will include Koken C-rings that I have been storing. They are attached to the sockets to prevent loss. Please replace them at the tips for use. - Brand: Koken - Model: Impact Socket - Type: 3/8 Socket - Color: Black *This is a spare item that I purchased, and it is new and unused. I have only opened it once for confirmation. ★ I can ship quickly, so thank you. #koken #コーケン