The Athletics Spikes Pyramid 9mm are replacement track spikes offering slightly more grip than the 7mm version, making them ideal for middle-distance and cross-country runners who need extra traction on softer or less grippy surfaces. The pyramid shape distributes force evenly for a stable, powerful stride without excessive drag. At 9mm, they provide a deeper bite into the track or ground surface for confident footing in all conditions. Always verify your competition's spike length regulations before use.