Safety-yellow color with contrasting black warning stripes provides excellent visual reference for drivers and other warehouse personnel Polyethylene construction is maintenance free with no painting or upkeep required Magnet holds unit securely in place with no hardware required for installation Dimensions: 13.7 × 8.26 × 39.37cm (5.38 × 3.25 × 15.5 in.) Stack multiple units for additional protection Works with racking up to 10.16cm (4 in.) wide