Wilson Evolution Indoor Game Basketball Buy an Evolution and receive a free 1-month subrscription trial of HomeCourt Pro. HomeCourt's proprietary Shot Science technology provides meaningful insights for every shot you take. Check your email for instructions on how to redeem your free month of HomeCourt Pro. You'll receive your unique promo code via email, then head to HomeCourt.ai/Wilson to redeem your code. Intermediate size - 28.5" Evo Microfiber Composite - Best combination of grip and durability Laid In Composite Channels provide unparalleled control Cushion Core Carcass allows a softer feel that's easier to grip and touch around the rim Approved for play by the National Federation of State High School Associations (NFHS) Indoor Use. Channel Construction: Pebbled Composite