Patented Technology Allows Mug to Grip to Your Desk When You Bump into It. Instantly Grips to Any Smooth, Flat, Solid Surface But Lifts Naturally Like Any Mug. 0.32l Capacity. BPA Free Plastic. Double Wall Construction. Dishwasher Safe. Gift Box Packaging. Available in Black, Pink, Red & White. Minimum Quantity: 48.