10 piece set combined ring and open ended spanners with a 12 point ring. Sizes 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm. Ratchet with a flip reverse lever to change direction with one hand operation. 72 teeth gives a working arc of just 5 degrees. Made of Chrome Vanadium. Satin Finish for increased grip in oily environments. Supplied in a handy durable storage wallet with hanging holes. Manufactured and designed in accordance with DIN3113A in high grade chrome vanadium steel.. The ring head is offset 15 degrees to facilitate use even on flat surfaces..)