Includes 3 replacement pins. 【High-Quality Materials】The anti-slip spikes are made of TPR rubber (body) and zinc alloy (spikes). They have excellent elasticity and durability. 【Anti-Slip & Fall Prevention】The ice spikes have 10 strong claws that firmly grip the ground, preventing falls and slips in various situations such as frozen ground and snowy roads. Walk with confidence. 【Easy to Install & Portable】Installation is complete by simply hooking them onto the toe and heel. They are light, thin, and small, making them convenient to carry. 【Suitable for a Wide Variety of Shoes】The simple shape fits various types of shoes. Compatible with everyday shoes such as business shoes, leather shoes, sneakers, and short boots. Suitable for most shoe sizes and for both men and women. 【Great for Winter】Easy to attach to your existing shoes or snow boots, making them ideal for commuting and going to school on snowy days. Perfect for snow spikes in situations such as climbing, travel, sudden snowfall, steep slopes, icy roads, ice fishing, hunting, walking, jogging, hiking, and snowshoeing. Please be careful not to get injured when attaching or removing the spikes, as they are sharp. Do not use the spikes if they are worn down or have fallen off.