Brand new sets sealed in the cellophane. 9 Piece 3/8 set includes extension 1 1/2, 3, 4, 6, 8, 11″ 3/8 universal joint, 3/8 female to 1/2″ male adapter, 3/8 female to 1/4 male adapter….. 1/4″ set includes extensions 1 1/4, 2, 4, 6, 8, 11″. 1/4 universal joint and 1/4″ female to 3/8 male adapter. Starting price is the cost of a 3/8 but you will be getting the 1/4 and a 3/8 for the price of just the 3/8. Both sets combined are $670 value. Again auction is for both sets 3/8 and 1/4.