Kowa hand-strap which allows comfortable one-handling from both sides of the spotting scope.
The Kowa TSN-HD for Kowa TSN 501/553 is a very light hand strap.
With this Kowa TSN-HD you can put your Spotting Sope in your hand and there is no risk of it falling.
By placing the Kowa Spotting Scope on your hand you can use the Spotting Scope without a tripod. Perhaps you can stabilize your arm even better on something you find in the area.