Replacement set of two baffle boards (21291) and two baffle blankets (PL39047) for Osburn 1600 Wood Stoves (2008 and newer). Each board measures 13-1/2" x 10" x 1-1/4" and the each blanket measures 13-1/2" x 10-1/2" x 1". The Boards are made from rigidized grey ceramic fiber alternative and the blanket blanket is made of a soft, flexible ceramic fiber alternative. This kit is a modern, safe upgrade that improves heat retention and protects your stove from internal damage - helping you stay efficient and compliant.