Made from Chrome Vanadium Steel to withstand high fatigue and wear High tensile strength and structural rigidity for a longer lasting tool Heat treated for improved corrosion and abrasion resistance Polished finish for a premium look and feel Material Cr-V Steel Type Combination Spanners 1x 8mm Spanner 1x 10mm Spanner 1x 12mm Spanner 1x 13mm Spanner 1x 14mm Spanner 1x 17mm Spanner 1x 19mm Spanner 1x 22mm Spanner 1x 24mm Spanner 1x 27mm Spanner 1x 30mm Spanner 1x 32mm Spanner 1x Double layer tetron pouch