Specifications: Polymer Mugs - Won't break or chip, and lighter than ceramic! These plastic mugs fit so many markets, and offer so many benefits, your customers are sure to want them. Made with a durable polymer formula, Poly mugs are lightweight and resilient, making them easy and inexpensive to store and ship. The crisp white surface produces vibrant images. Great for cafes, reunions, parks, patios, boats and marinas, RVs and more! Requires Mug Pressing Tool.