FlexBook info.festi.boxes.py.FlexBook flexbook 75.0 35.0 125.0 8 false 3.0 0.0 false false true 100 loop corner backarc 0.1 90.0 rectangular springs barbs snap 2.0 0.0 1.0 0.0 2.0 0.0 2.0 1.0 1.05 1.0 0.5 5.0 ./FlexBook-thumb.jpg https://www.festi.info/boxes.py/FlexBook all