Our daughter got a big swing set for her birthday in May when she turned 3 but it didn't come with a glider. Because she sometimes forgets to hang on to the swing and has fallen a couple of times, I thought having one would be a great transition between the baby swing and the big swing until she gets used to it.  After researching online the Wind Rider Glider Swing seems like the best product out there for us. It had good reviews, the price was decent and the installation couldn't have being more simple. no brackets or special attachment needed. just unhook the regular swing and hang the glider. The chains are very easy to cut to the length you need them and although they look like they are made of metal, they do not get hot in the sun.  It also feels very study and safe for young tots. Our daughter absolutely loves it and it's the first thing she wants to use with every time we go outside to play. I highly recommend it.