Optimus Pyramid Hex Spikes

★ Optimus® Steel Spike Nails With Key is suitable for all spike shoes. These spikes are suitable for all kinds of standard spike shoes, and they are applicable in track and field or cross country surfaces.★ Optimus® Steel Spike Nails With Key is very useful accessory for your spike shoes as these spikes will add the friction between the shoe sole and ground, thus can resist skid and improve your running speed.★ Optimus® Steel Spike Nails are made of premium quality steel, are sturdy and durable, with heat treating on the surface, can prevent rust and erosion, providing long lasting life.★ Optimus® Steel Spike Nails are total 12 mm in length, and they are in pyramid needle shape, with pyramid length of 7 mm & thread length is 5 mm.★ Optimus® products comes with a 100% Satisfaction Guarantee. Our customer service is dedicated to addressing any product/service issues and is committed to delivering a 5 star experience for all buyers. If you're not happy with our product, simply return it for a full refund. You really have nothing to loose !