Fantastic Iconic Keep Calm and Carry On Mouse Mat With the original pillar-box red eye-catching design. Mint, with a style that is instantly recognisable and will wow any visitor to your office! Brand New Hardtop Mat. Works with optical mouse or normal roll ball mouse. Size: 23.5cm x 18.5cm. Perfect for the home, the office, working site, for students, workers, young dudes, IT workers, computer buffs etc. Fits in with the rest of our Keep Calm range.