Coloring Tote. They have individual pocket for your washable crayons or markers. The white is polyester so yes it can be sublimated or HTV on. I did Sublimation and my grandson was excited and said and all my stuff can go inside. 10” x 10”. 9 crayon pockets 3 1/2” tall. Note one side has the color and the backside is all white to be able to put large Design to be colored.