Indoor soccer players have been kicking these hand-stitched, yellow, felt-covered balls for years. It"s just that Mikasa Sports USA"s is built for maximum power and speed. The way Mikasa Sports USA constructed the inside, the SX50 will give your foot a higher response on the outside. Slam it hard against the boards. Now count your goals! Specs: Size 5, Durable felt cover material, 1-year warranty