This toy is a piece of junk. There is a requirement that it be toggle-bolted into the ceiling with two toggle-bolts (provided) and the ceiling must be one of drywall. So if you give your child or grandchild this toy and you have a wood ceiling, forget about it! And who wants to toggle-bolt something to their ceiling and WHY DON'T THEY MAKE THAT CLEAR BEFORE YOU GIVE IT TO THE CHILD??? Our solar system is sitting on our coffee table, the remote control that makes it revolve is already broken. I emailed the company about alternative ways to hang the item and never heard back.I suppose if you have the right kind of ceiling and are an owner (not a renter) and you know up front that you are going to drill holes, it might work out. Otherwise, buy something else.