Thin Wrenches work where nothing else will. Perfect for shift linkages, motorcycle and bicycle work and other low torque hardware. Made of plated high strength alloy steel. Includes 9 pieces: 8mm x 9mm, 10mm x 11mm, 12mm x 13mm, 14mm x 15mm, 16mm x 17mm, 18mm x 19mm, 20mm x 21mm, 24mm x 27mm, 30mm x 32mm. Limited lifetime manufacturer's warranty. Imported.