I'd been looking for a weighted base that would fit the dash tray on my SUV and not slide around during driving. This one works perfectly. It fits in the tray and is heavy enough that it stays in place. I recommend it to anyone with a similar situation.
The product works well. It is a lot easier to use than the window mount that I had been using. The window mount just connects to the weighted base with the suction cup and it stays on the dashboard even over a bumpy road. I would recommend this product to anyone looking for an easy way to mount their GPS.