Our punched hole portable curb ramps are preferable in an environment where drainage is a concern such as outdoors when it is raining as rain accumulating on a curb ramp could make for a slippery and dangerous situation. Punched holes allow for such drainage while providing traction. LINCO sells curb ramps in yellow so that they are easily seen to prevent tripping and to also make them easy to find when moving a delivery. We also provide curb ramps in black and silver to accommodate any style or functional need. Many of our sidewalk curb ramps come equipped with adjustable lips so you are sure to have a customized fit to any curb or raised level at any time. LINCO curb ramps provide the ultimate solution to any uneven terrain or raised level you may encounter.