Easy to use 48 hour timer. Requires 1 x AA battery (not included) for approximately 12 months operation. Two large food bowls each hold up to 400g (14 oz.) of food with ice pack to keep food fresh. Optional lid-link clip ensures simultaneous opening of both lids for feeding two cats. Easy to clean, removable, dishwasher-proof lids and bowls. Tamper resistant to pets and fly proof. May be easily fastened to a wooden board for extra stability, if required.