When I went to IKEA earlier this week, no Racket frames were available and they no longer appear on the website. It looks like these are limited to stock-on hand.
The process should take about 10 minutes, it took me about 15 minutes including taking these fantastic pictures. The size depends only upon your imagination and budget.
Step 1: Gather Materials and Tools
12 - screws 5/8"-3/4" or 5/8" brads
1 - drill bit for pilot holes
2 - eyelets
2 - screws for attaching finished frame to wall