Highest quality chrome vanadium double ring gear Spanner set for the professional or the home mechanic. With flexible heads on either end which bend to over 90degrees these are perfect to get into confined space where rigid ratchets just won't fit. The spanners have a highly polished mirror finish for appearance and ease of cleaning. The mechanism in the ring gear comprises of 72 teeth which gives you a 5degrees movement at each click. Presented in canvas storage carry pouch which has individual pockets for ease of transporting. Specifications: 6 Piece flexible double ring ratchet Spanner set Sizes: 8x9x165 10x11x184 12x13x200 14x15x220 16x17x240 and 18x19x255mm. flexible heads to over 90 degrees. 72 teeth ratchet. 5 increments. Chrome vanadium steel. Mirror finish. Canvas storage case.