Used for any time you have a knee brace attached to same tree and to stabilize a platform that has more than one attachment point.
If you have 4 trees you can have one tree that is fixed. Usually the largest or the one that moves the least. The others need to be sliding so all trees are independently from each other.
We highly recommend that this fixed bracket be set with the 3" of pipe set toward the tree giving you 3" of space between the tree and the lumber and that it be set on the inside edge of the beam(side closest to tree).
Dimensions: 10" long 2" wide with bolt holes offset to accommodate doubled up 2by lumber. The pipe is 5" long in total and fits all GLs( GL perch is 1 1/4" in diameter)
All of our Brackets and KneeBraces are designed to fit a 1 1/4" diameter GL