Helps organise colours to make choices and combinations easier;Defines common terms and helps the artist to understand colour uses and interactions.Designed for all artists, including: Painters, crafters, interior, graphic, garden, and landscape designers;Perfect gift for creative people!Two-sided rotating wheel shows colour relationships;230mm diameter,Convenient and portable.UV coated to minimise fading and protect from moisture.Paper cover makes it;Paper evelope cover makes it difficult to break during transportation.Good for beginners to identify any of the colors easily and recognize the middle of the color simply.