The Spider frame is the newest frame design we offer. It is made in the USA, and represents one of the first "new" ideas in frames for corrugated plastic signs in a long time. It is installed into the bottom of the coroplast sign into the flutes of the plastic. It is held in place by a small barbs on the pieces that go into the flutes. The frame will blow around, but is amazingly flexible and springs back. It is built around a torsional design specifically to spring and flex in this way. In the wind it almost has a waving effect that draws attention to your signs. It also features a small step built onto the side to make it easy for anyone to step it into the ground. It is an interesting alternative to the traditional light econo H-frames and sells for $3.00.