Kingsman Herringbone Refractory Fiber Brick Liner for HBZDV4736 Direct Vent Gas FireplaceFeaturing durable construction, this liner easily provides a classic appearance for your product, while its herringbone brick design easily integrates into any dcor. What's Included 4 Piece Herringbone Refractory Fiber Brick Liner Features Color: Brown Installation hardware included Durable cast refractory construction Designed to add a realistic appearance to the firebox interior Provides the look of a herringbone style brick pattern Designed