2 Tier Internal & External Corner Railway Sleeper Bracket ------------------------------------------------------------- These Railway Sleeper Brackets are called 2-Tier as they are designed to be used when building items that are at least 2 Railway Sleepers high. This product is suitable for use with 7x3 Timber Railway Sleepers ---Planters ---Retaining Walls ---Double Height Driveway Edging --- --- A quick and very easy system for mounting railway sleepers as drive / path edging, screw sleepers to the bracket on the sleeper joints. Made from Heavy Duty British Galvanised Steel for a stunning finish that is built to last. Available Variants: ---Black - Powder-coated finish to provide additional durability and a protective barrier that helps prevent corrosion.