Classmates rigid whiteboards are made from 3mm thickness MDF. These durable boards accept dry-wipe or water based OHP pens and can be wiped using a damp cloth. Contains 35 Non-magnetic A4 lined whiteboards including dry-wipe pens and erasers. Please note dry-wipe pen colours may vary.Made from 3mm thick MDF for strength.Accepts dry-wipe or water based OHP pens.Dimensions: W210 x D297mm.