Double ring spanner set, 12 pieces, chrome plated, polished, DIN838. Supplied = assembled. Weight = 3.6 kg. Number of parts = 12 pcs. Included in delivery: 6 x 7, 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17, 18 x 19, 20 x 22, 21 x 23, 24 x 27, 25 x 28, 30 x 32 mm. Chrome-vanadium steel. Chrome plated and polished.