Hardekool sanded to around 320 grit, and then worked a bit along with the grain of the wood with steel wool to remove some of the softer wood and allow the natural pattern to expose itself. The heartwood/sapwood combo works well on this one, with the natural grain looking stunning on both sides. This brush fits in between a short and a long handled brush and allows for more hand movement instead of wrist movement. The dense wooden handle weighs in at 79 grams, stands 120 mm high, and is fitted with a 21mm Best badger knot set at a 57 mm loft. Very little, or if you prefer no maintenance is required for this brush.