This set includes 3 brushes- 25mm (1 inch), 38mm (1.5 inch) and 50mm (2 inch). The 25mm Brush is ideal for painting window and door frames as well as for edging The 38mm Brush is ideal for painting furniture and skirting boards. The 50mm Brush is ideal for Doors and medium sized surfaces.The Brushes are made up of natural bristles that will give an even and reliable finish with all types of paints and varnishes.The Extra brushes are extremely light weight and have comfortable, shaped black plastic handles. The bristles are easy to clean after use too, with cleaning instructions on the packaging.