Six 4 Liter Sand Trays and 25 lbs Classic Therapy SandWhat a great value! This kit includes 6 of our popular 4 liter portable sand trays and 25lbs of the Classic White Therapy Sand. Our portable sand tray comes with a locking lid and features clear, heavy duty plastic with a blue tint. It measures 12 x 8. 5 x 3 inches on the inside and 13. 5 x 10 x 3 inches on the outside. Perfect for the therapist on the go! Our classic therapy sand does not contain free silica or free quartz and is non toxic.