The following is a brief overview of the Micro Quad frame from BlueSkyRC.com

Product Name: Micro Quad
Product Page: http://www.blueskyrc.com/index.php?main_page=product_info&cPath=5&products_id=30&zenid=c412c56c3c5ec564dec422a78e0d8e2c
Purchase Price: $9.99USD
Review Date: Jan 2012

The Micro Quad is the "Funsized Quad" -- this precision designed frame is laser cut from hand selected 1/8th plywood. Strong and light.

The Mini Quad is an original design by Terry Balling and is also known as the "Funsized Quad" -- measuring 8 inches diagonal from motor to motor. The frame is perfect for up to 5 inch propellers, 6 amp speed controllers, and 10gram 2000kv motors (or around that).

Standard motor mount holes are pre-drilled as are holes for mounting screws. The flight deck is pre drilled for the standard KK and MultiWii flight control boards. The frame comes with an optional roll plate that can also double as an adapter mount for the Mini MultiWii board or the OpenPilot CopterControl board.