South Bay Skate Co - Skateboard Grind box - 4' & 6' Box Lengths – South Bay Board Co.
Amazon.com: OC Ramps 6ft Grind Box - Durable Skate Boxes for Grinding - Wood Skateboarding Obstacle with Metal Rail - Great for Bikes, Scooters, Snowboarding and Inline Skates as Well : Sports & Outdoors