25 pieces of 1/2" sockets, 1 piece 18 pieces of 1/2" drive ratchet wrench 45T 10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-27-30-32 mm is the drive socket size for 1/2 ". One Piece Two-piece 1/2" drive universal joint Drive Extension Bar: 125 & 250 mm in length Two pieces 16mm Spark Plug Socket