The Nike Mercurial Vortex III FG cleats in size US 4, UK 3.5, and EU 36 are designed for young boys who play soccer. These black cleats are made by Nike, a popular brand known for quality athletic footwear. With a focus on performance and style, these cleats are perfect for young athletes looking to enhance their game on the field. The Vortex III FG design provides excellent traction and support, making them a great choice for young soccer players in training.