With a blend of several natural hairs with a proprietary groundbreaking synthetic fiber meant to create the perfect Mongoose substitute, Raphael Kevrin+ is in fact a better brush than its predecessor and offers all the features a quality oil and acrylic brush requires.Details:Round brushAvailable in multiple sizes8 brushesSynthetic and natural blend filamentLong handleExcellent paint retentionVery good shape memoryFor use with oil and acrylic paint