USA Industrials - Sheet: Natural Gum Rubber, 12″ Wide, 12″ Long, Tan - 31934516 - MSC Industrial Supply
Amazon.com: Small Parts 33-014-062-012-024 Pure Gum Rubber, 40A Durometer, Smooth Finish, No Backing, 0.062" Thickness, 12" Width, 24" Length, Tan : Industrial & Scientific