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
BMX Grind box : r/bmx
GRIND BOXES – Suba Ramps
$150 DIY Grind Box : r/bmx
How To Build A BMX Grind Box - YouTube
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
Building a Grind Box for Skateboarding or BMX
South Bay Skate Co - Skateboard Grind box - 4' & 6' Box Lengths – South Bay Board Co.