1)magnetic color vision workshop caps 2)different color can be chosen 3)good quality ... it easy to identify in all directions. Color: red, yellow, blue, grey, green, and so on the many kinds of color ... hat colors, numbers and/or messages. Hat colors available: Black, Blue, Gray, Green, Lime, Orange, Pink, Purple, Red, Tan, Yellow and ... or with a blank dry erase area. magnetic color vision workshop caps