Set of 12 winter door stops. Close up martin house in off-season to keep undesirable species from becoming entrenched during winter. Will also keep bluebirds and tree swallows from taking over house before purple martins return. Do not remove until martins are seen or known to be in the area. WDS-12 fits all Nature House martin houses.
This product was added to our catalog on Tuesday 10 November, 2009.
