DH-UP-4-END This Curb Ramp END can be connected together with multiple pieces to fit curbs of all lengths for increased access and a smooth transition between surfaces with up to a 3. 75" difference in elevation. Heavy Duty 5 Ton Curb Ramp End Cap * End cap or corner piece for the DH-UP-4 heavy duty vehicle curb ramp * Uneven surface transition up to 3.75" elevation * Ideal for loading docks and commercial application * Maximum 5 ton vehicle capacity * Heavy duty black thermoplastic rubber