These are made of stone/cement...and are almost as smooth as glass. The colors are the stone color, this is not paint, the colors are solid throughout the ramp. The dimensions are: 8 3/4" Long, 2" High, 2" wide at the base.
For feedback on shipping etc..check out Ebay: http://www.ebay.com/usr/rjter50
At the bottom of the page select the color!