Montessori Wood Sand Writing Therapy Tray with Lid and Colored Sand Engaging preparation and practice of writing, formation of letters, numbers and shapes Made of smoothly lacquered birch hardwood tray with Lid. Measures 9-5/8 x 9-5/8" Develops small motor coordination, Provides children with a tactile hands-on sensorial experience Handles on tray help children easily carry tray. Includes lots of colored sand, approximately 1 pound (color of sand varies depending upon availability). Excellent for therapy for children and adults as it is very soothing. See related item L8168,set of laminated durable tracing cards which is sold separately. IF TRAVELING IN A CAR WITH THIS ITEM SIMPLY PLACE A BAND AROUND THE LID TO KEEP SAND FROM SPILLING.