Personalised My class is full of Brainboxes Card There is always an occasion to let your loved ones know how special they are. With our range of quirky cards you'll find heartfelt or hilarious ways to let them know how much they mean to you. A Square Printed Card. Supplied with envelope. Inside is left blank. Personalise with teachers name Dimensions 145mm x 145mm. Material High quality 300gsm White card.