A perfect solution for those needing a combined calendar and clock, when finding it difficult to keep track of the time and the date. Large black numbers and clear 25mm high letters make it ideal for people with limited vision, those with dementia or other cognitive or memory disability. It is completely self adjusting for irregular days in the month and leap years. It has a high precision quartz battery movement and comes in a tough white plastic case. Easy to fix to wall with supplied rawlplug and screw. Requires 1 x AA battery required (included).305 x 380 x 75mm (12 x 15 x 3 inches).