The self-adhesive label on the back means it can also be attached to a gift or to an object to act as a label. People with a visual impairment could use them to identify their CDs, storage boxes or food packets. The voice message can be up to 10 seconds long and is re-recordable. Voice Pads are easy to use and include large print instructions. Dimensions: 80mm high x 55mm wide x 5mm thick. They are sold in packs of 3.