Crystalon RimGlow Caribbean Tumbler, 12 oz, Polycarbonate (PC), Meadow Green Colorful tumblers change hue and intensity to create a distinctive presentation Stacking lugs and tapered design allow for space-efficient nested storage without jamming Made of durable, high-strength polycarbonate plastic Textured ribbed exterior provides increased grip while hiding blemishes due to normal wear and tear Dishwasher safe