Amazon.com: Ramptech Mini Grind Box (10" Tall x 16" Wide x 5' Long) - Weatherproof, Heavy-Duty Indoor and Outdoor DIY Skateboard Grindbox Kit - Portable Box with Galvanized Steel Edges and HDO
Skate Box | SeattleSkateFeatures
Solid Skateboard Grind Box 72" x 35.5" x 13" for Sale in West Covina, CA - OfferUp
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