The solution for blockwork corners. Extends the use of Blakes Corner Profiles to include internal blockwork as well as external brickwork. Allows the construction of both cavity skins without building up corners first. Both lines are set from the same point which ensures cavity width from Damp Proof Course to Wallplate.Blockdolly can also be used for line projection, making construction of stepped reveals, piers and even buttresses easy and accurate/Blockdolly is manufactured from laser cut stainless steel, making it lightweight, robust and durable. Sold in pairs complete with 4 standard Blakes Nylon Line Holders and 4 thumb screws.