No-spill Kangaroo Cup - Plastic (1, Solid, assorted set of 4) Very stable - resists tipping/spilling if bumped or knocked Break-resistant, stain-resistant, lightweight BPA-free plastic, Microwave and dishwasher safe Stacks neatly for compact storage in cupboard Won't leave rings on tables, legs lift body off surface Stable on any surface, from the ground to a mattress