This is the ramp i have in my Qurantine cage. Its made of 3 pieces of grids. The top ramp covers a drop of about 12 cm than the flat area stands about 30 cm high and is made of an over turned draw from my brothers wardrobe shelving sysytem. On top of it is a peice of fake fur my piggies love to sleep on. The last drop is about 30 cm and has the two grids. The first one is bent so it has sides to stop teh pigs jumping off the second one is just a grid folded in half to allow the pigs more movement when running around the cage (eg isntead of going around it they can go over it)