Grind Box - 8″ high x 16″ wide x 4′ long – SB Skate Ramps
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
Amazon.com: Keen Ramps - Skateboard Grind Box - 4ft or 6ft Long - Skate Grind Box for Skateboards, BMX Bikes, Scooters, & Roller Blades - Professional Skateboarding Ramps for Home - Made
Skate Ramp Fun Box Skateboarding Element H 3D Model $19 - .max .fbx .obj - Free3D
South Bay Skate Co - Skateboard Grind box - 4' & 6' Box Lengths – South Bay Board Co.
Obstacle Guide - What is a funbox? | skatedeluxe Blog
Skateboarding funbox | 3D CAD Model Library | GrabCAD