Universal Entrance Reducer. Ours are made out of Douglas fir, and are weatherproofed by boiling them in a solution of paraffin and tree rosin like our bottom boards for years of use.
These wedge shaped entrance reducers are ready to use and will fit any size bottom board, regardless of the size opening.
Berner (Submitted on Jun 29th 2016)
Initially, I was a little concerned about a lack of hole-size options but my concerns have been alleviated after using them for 5 years. I place the hole up and wedge the reducer into place. It stays in place - no need to frequently check to see if the wind has blown it loose. Lastly, it doesn't warp - probably due to the weatherproofing. I now have 4 of these reducers and they still look like new.