1/2 Inch Flat Bright Paint Brush, Pack of 12, Premium Quality Synthetic Sable Hair for Acrylic Watercolour Oil Gouache Painting by Students, Professionals and Artists : Amazon.co.uk: Home & Kitchen
Winsor & Newton Professional Watercolour Synthetic Sable Brush - One stroke 1/2" | SAA
Princeton Art & Brush Select Synthetic Brush-Flat Wash 1-inch : Amazon.co.uk: Home & Kitchen
Plaid:Craft One Stroke Brush-Flat 1-inch Width, Size : Amazon.co.uk: Home & Kitchen
Major Brushes Flat Synthetic 1" / 2.5cm Paint Brush for Watercolour & Acrylic | eBay
Daler-Rowney Aquafine Brush - Short Flat 1 inch (25mm) | SAA
White Flat and Angular Taklon Brushes 4 Pack | Hobbycraft
Flat Artist Brush 1 inch – Colour Me KT
Daler Rowney System 3 Acrylic Flat Brush - 1 inch - SvAugust