Specification: Material: Rubber+Alloy Color: Black Description: Velcro included. Each crampon 7 sharp tips. Durable and perfect anti-slide function. Easily fastened to sports shoes/mountaineering shoes of different size betwen EUR about 35~43. Ideal for glacier travel or snowy approaches. Package Includes: A Pair Of Crampons Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.