One of the coolest Rolling Trays out there! Flowtray has created a rolling tray like no other. The quicksand like feauture moves when you move the product. These products are all glow in the dark, and look great under a black light! Don't worry about rolling without a light, the FlowTray rolling tray can be used in any time of the day! These trays are leak proof and toxin proof, with endless waterfalls and an edge to edge cascading quicksand effect! Choose from all four vibrant fluorescent colors, like blue, green, red and orange! You may need to expose the the rolling tray to light in order for it to fully glow!