Features: The meme pin is really sturdy and well made, colors are beautiful. the spinning wheel moves nicely, not too loose or tight. it will also be a good helper when teaching color theory . Color wheel pin was the perfect gift for artist, designer,art students,color theory teacher, perfect for user to keep on hand and also spinning the thing is easily going to become a favorite fidgit activity.heart enamel pin. Environmentally friendly alloy; environmentally friendly paint,safety material. Art lapel Pin back is tight, not easy to fall off, locking the pins safety in place,easy and convenient to use. Easy match with your outfit,perfect brooch pin for backpack, sweater, scarf, head scarf, dress, suit, bag, hat. Package Includes: 1 Piece Color Wheel Enamel Pin Specifications: Material:Alloy Color;White,Black note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.