|1m Drawing Square in use|
|Bungie strings stretch over obstacles|
Each of the red grid strings is a bungie cord with a ring on each end. The rings fit over knobs attached to the yellow frame. The stretching grid strings make them quick to assemble and disassemble, but they are also handy while you are using them. They stretch over and around rocks that might be in the middle of your unit and if you are careful, you can even step onto the screen while you are mapping, without fear of moving or breaking your drawing square.
|20 cm grid squares - good for big rocks|
|Legs would be awesome!|
Photo Credits: Tim Rast