Grand Prix Interlock Chunking brushes, for oils and acrylics, are a BEST SELLER! You asked for these “green handled brushes” because they are recognized as one of the great Chungking bristle brushes! At great prices, in four shapes. They feature long handles, seamless copper plated ferrules and only the finest select AAA bristle with natural flags. Series 1000, 1001, 1002,and 1003.