Outdoor Flint Sole Spark Flint Set brings you a new outdoor experience. Equipped with flint and sole holder, through the friction between the sole and the ground, you can generate sparks can be used in riding bicycles and motorcycles and other activities. Lightweight and easy to carry. Divided into two specifications 1 portion pack and 2 portion pack (each portion contains a shoe cover and 4 spark stones) Simple installation, firm and reliable, not easy to fall off. The effect of spark grinding makes you more eye-catching and show your personality in outdoor activities. Made of high quality material, durable and waterproof, ensuring stability and reliability for long time use. Enjoy the fun of outdoor life while staying safe and reliable.