The size is 30cm. Please ask if you have any questions. Thank you. 【High-Performance Spikes】 The Nike ZoomX Dragonfly is a high-performance spike specifically designed for track and field. It features a lightweight and breathable mesh upper, providing a comfortable fit. 【Excellent Grip】 The sole has a special traction pattern, achieving excellent grip on various track conditions. It's designed to maximize speed. 【Energy Return】 The midsole, using ZoomX foam, enhances energy return and supports efficient running. It's an ideal choice for athletes. - Brand: Nike - Model Name: ZoomX Dragonfly - Color: Yellow/Black - Size: 12 (US) Thank you for viewing.