The 15 and 14-year-old were mugged on Long Lane, Halesowen, at around 8.45pm on July 5.
Police are now appealing for help and want to speak to seven individuals caught on CCTV.
Anyone with information is asked to contact West Midlands Police via Live Chat, quoting 20/619974/22.
#APPEAL | Do you know these youths?— Dudley Police (@DudleyPolice) August 15, 2022
We want to speak to them after a 15-year-old was punched in the face and his 14-year-old friend had his bag stolen.
It happened on Long Lane, #Halesowen, #Dudley around 8.45pm on 5 July.
Think you can help? 💬 Live Chat quoting 20/619974/22. pic.twitter.com/8GtTPygpSd