Product description Socket wrench inserts made of chrome-vanadium steel 1 ratchet 9.53 mm (3/8"), fine teeth, with one-handed switching, quick-acting ejector and two-component handle 15 socket wrench inserts 9.53 mm (3/8") size 6-7-8-9-10-11-12-13-14-15-16-17-18-19-22 mm 1 Spark plug socket wrench insert 9.53 mm (3/8") x 16 mm 1 Spark plug socket wrench insert 9.53 mm (3/8") x 21 mm 1 T-sliding handle 9.53 mm (3/8") 1 Extension piece 9.53 mm (3/8") x 75 mm 1 Extension piece 9.53 mm (3/8") x 150 mm 1 Universal joint 9.53 mm (3/8")