Soapstones, Square, 1 4 in x 5 in, White ORS NASCO Features a one piece dual hex nut Features a one piece dual hex nut that eliminates interference issues and simplifies periodic flipping of the wheel for maximum cutting action Extra wide brim provides extra shelter from sun and rain High density polyethylene material is durable and lightweight Extra absorbent brow pad for added convenience 4 pt ratchet suspension Fits head sizes 6 All white texture for excellent marking quality Grain cut to ensure good strength and long service life Marks will not contaminate welds and are easily removed Low water content for increased hardness and resistance to breakage