wait, i might have found my answer. i think walmart has the little plastic ramps. has anyone bought them? i actually wanted to buy some and "cap" off some dirt jumps i made in the woods for mtb "free riding".

i'll obviously make sure it is safe. these little plastic jumps look like they might make for a nice jumps in combination with some dirt underneath. has anyone done this? i just have no help building the jumps and using dirt can be tedious and make you feel like you are getting nowhere. i thought this might save a little dirt on the upper part of jump.

thanks