The bracket is for the pole saw extension handle. There are two on each pole saw handle extension.
One before the yellow grip tape begins and one on the bottom where the grip tape ends.
SKU: Bracket Set (S) 370-39-56 for the 3.8m Hayate pole saw only
SKU: Bracket Set (M) 370-39-57 for the 5.0m Hayate pole saw only
SKU: Bracket Set (L) 370-39-58 for the 6.1m and 7.7 Hayate pole saw only