Porcelain Doughnut Insulator: Fire-resistant insulator. High-quality white glaze finish. Use for change of direction in permanent fences. 15 year warranty. Post Type: Wood, Color: White, Dimensions: 41 mm/1.5 in x 41 mm/1.5 in x 27 mm/1.1 in, Weight: 0.143 lb., Pkg Qty: 10, Package Type: Box G