That was built by Tony DiGiorgio http://www.houzz.com/pro2/digiorgiocontractingco/di-giorgio-contracting-company However; before you build something like this - please check with your local building department. Specifically the opening at the bottom may require that the lower frame be pushed down so it is smaller. For safety, some inspectors will not allow anything larger than a tennis ball.
Leicht Haus by Blue Plum
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