I have a GE record player and it came with a 45 spacer. Apparently it's supposed to just "slide on" but it's proving to not be so easy. I have included a picture of what the adapter looks like. Can someone please explain to me how to use it properly?

http://s12.photobucket.com/albums/a221/haxximaloser/Record%20Player/?action=view&current=0130002243.jpg