Double ramps with a center grind rail designed for Skateboarding, BMX, in-line Skating, Snowboarding and Sand-boarding tricks. Made with rugged molded plastic material with a traction ramp surface for riders weighing up to 250 lbs. Includes (2) Large 25-1/2"W x 29"L launch ramps (70. 5°) and (1) 56"L x 1-1/4"D grind rail. Must be secured firmly in place for the best performance and safety (includes mounting screws) Skateboard BMX Ramp "n Grind Rail * Double ramps with center grind rail designed for Skateboarding, BMX, Inline Skating, Snowboarding and Sandboarding * (2) Large 25-1/2"W x 29"L launch ramps (70.5°) and (1) 56"L x 1-1/4"D grind rail * Maximum 250 lb. rider capacity * Rugged molded plastic material with a traction ramp surface * Must be secured firmly in place for the best performance and safety (includes mounting screws)