The T-Stake is a heavy angle iron frame. It is installed into the back of a sign into with bolts thru pre drilled holes on the frame. It is very sturdy, strong enough to be stepped into hard ground without damage. It is primary used for longer term and multiple use 1 sided signs. It is also our most popular stake for construction, lot number and directional signs. The stakes can be bought by themselves for $7.00 each, or we can install on them on your sign using fender washers, bolts and lock nuts for an additional $1.50 each.