Not all dogs like ramps

Bought in July 2011. The product itself is very good. Handy and reasonable process. It can be easily moved by not so "strong" people and are held up. But what good are all these plus points if the dog, an 8 year old 60 kg Bernese Senne dog does not dare to walk on the ramp. Since all treats are useless. Thus, the ramp is now in the basement ... until sometime the next dog.