Aiwa present product features heavy duty material the best quality for car machine and house . 40 Pc set 1/4'' & 3/8" drive metric socket wrench set . 1-3/8" Dr.Reversible ratchet handle 8". 1 Spinner handle. 1-Extension bar 3". 1-1/4"(M) x 3/8"(f) adapter. 1-Big spark plug socket 21mm. 1-Spin disc. 3-1/4" Dr.Spt.Sockets : 1/4,5/16, 3/8" . 12-1/4"Dr.Spt.Sockets : 4 , 4.5 , 5 , 5.5, 6 , 6.5, 7,8,9,10,11,12 Mm . 3-3/8" Dr. Spt.Sockets : 9/16, 5/8, 11/16" . 3-3/8" Dr.Spt.Sockets : 14,15,17 mm . 12-1/4" Dr.Spt socket . 5/32, 3/16 , 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2" A complete wrench set warranty 1 month vendor warranty against manufacturing defects in the box 1 40 pcs wrench set.