The Aspen Wood Sand Tray. This Wooden Sand Tray is Amish Hand Crafted to ensure durability for years of Sand Tray Play. Multi Step Paint Process on the Ocean Inside! finish, completed with a 90 sheen super shinny finish, this coating ensures years of Play Therapy sessions with wet sand applications as well. Aspen Wood Sand Tray Measures 28.5″ Long X 19.5″ Wide X 3.5″ High. Best Price on the Web for any Wood Sand Tray.