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California Sunbounce Pro (4 x 6 Feet) Kit-Reflector Panel Kit with Frame and Carry Bag (Silver/White)

It is the only truly rigid frame system because it is 3-Dimensional
It is extremely light despite its size
The screen remains taut because it can be tensioned like the skin of a drum
Only the very best quality fabrics are used
No velcro fasteners are ever used