20 dry erase tunics. Add excitement and versatility to your daily classroom routines. Use dry erase markers to customize these bright, plastic tunics for a different look every day. The tunics are perfect for exploring letters, words, numbers, shapes and colors. Ideal for team and small group activities! The guide includes information for integrating the tunics into eight areas of the curriculum. Tunics are 8¼ x 25¼" (21 x 64 cm). Includes comprehensive teacher guide.