The EYFS Rainbow - Electronic version for whiteboard use - The Training Space
Rainbow Board is an open source whiteboard application with customizable brush colors - gHacks Tech News
Rainbow Whiteboard 0-20 Number Posters – Primary Classroom Resources
Versatile A3 Rainbow Magnetic Whiteboard - Dual-Sided with Blank and Grid Layout - 40 x 32cm. Perfect for Home, Office, and Classroom Use : Amazon.co.uk: Stationery & Office Supplies
Rainbow and Black I-Spy Whiteboard | School Signs, Nursery Signs, Whiteboards, Safety Signs - Upson Downs