Desk Buddy Textured Ruler
Perfect for children who are frequently fidgeting and seeking tactile input. A team of OT's, teachers and engineers combined to create this ruler for safe use at home and in the classroom. It provides children with both a practical and socially acceptable way to touch and fidget at school. It's safe for those who like to chew as well (BP and Phthalate free and dishwasher safe).
Please be aware this is an American product so only comes with measurements in inches, not centimetres.