Size: Adjustable from 36 to 45 (single row hole easy to adjust) Package: Color box packaging Material: High strength manganese steel, imported plastic, imported double layer fabric belt The hiking shoes shown in the following pictures are only for shooting demonstration and are not included in the shipment. The plastic parts are made of American DuPont's cold-resistant TPE, which can ensure the stability of the material under extreme climates of -50 degrees and +60 degrees. The steel is a high-density manganese steel sheet directly stamped into shape, and the vacuum heat treatment with high technology makes the product have uniform penetration and anti-fatigue properties, making it more durable and wear-resistant. The fabric belt is a specialized user-external type of Taiwan, which can resist crystallization and water absorption. Process characteristics: The new 2014 mid-altitude walking ice claws use high-density manganese steel, which undergoes strict vacuum heat treatment and tempering process, showing high hardness and good toughness in practice. Using this material, it improves the quality and service life of the ice claws in complex outdoor geographical and climatic environments.Process characteristics: The use of high-fiber fineness and density polypropylene yarns significantly improves the bindings in the following aspects: (1) Mechanical properties: high strength, elongation, elasticity, wear resistance, and high elastic modulus. (2) Chemical properties: improved corrosion resistance when in contact with water, acids, alkalis, salts, and other chemicals. (3) Physical characteristics of the human body: good appearance and feel, high comfort. Process characteristics: High toughness, low shrinkage, which improves the outdoor wear resistance of the ice cleats, a wide range of temperature adaptation, and the temperature physical property changes are not large, making the ice cleats maintain a better level of comfort in various environments. Snow shield: GPUAA material, resistant to wear. The overall temperature resistance range of the ice cleats: -35 to 60 degrees Celsius. Safety buckle: Made of manganese steel, chrome plated, sturdy and durable.