Before purchasing from this company please be aware that they are located in China. They are not a local distributor. I purchased a track and needed to exchange it for a different unit. Although the website states this isn't an issue they have yet to offer a local address for a return. I have been waiting weeks. Another issue is that I read all the reviews online on their website BIG mistake. They are able to pick and choose which reviews they want posted. Their website is misleading. They make you believe they are a local distributor and that customers are all very happy. Be warned this is not the case. Save yourself the hassle buy locally!