Define, refine and blend with Ruby Hammer Magnetic Brush Set 01. Combining three interchangeable magnetic brush heads in a tapered, smudge and angled finish. All brushes work with cream, powder and liquid formulas. Designed by an artist, customised by you. "This ingenious new brush gadget is a make up bag must-have". - Vogue " Such as innovative way to carry multiple brush types with you" - Bobbi Brown