Conveniently schedule up to 12 meals per day for your cat or dog. Flexible Portions - Schedule 1/8 cup (30 ml) to 4 cups (948 ml) per meal depending on your pet’s unique needs. Works With Most Kibble - Feeder works with dry and semi-moist pet kibble that is up to 3/4 in. (2 cm) in diameter. Slow Feed Option - For pets who tend to eat too quickly, schedule meals larger than 1/8 cup (30 ml) to slowly dispense over 15 minutes. Pet-Proof - The feeder is designed to keep prying paws from sneaking food before scheduled mealtimes. Easy to Clean - Place the BPA-free plastic feeder parts and the stainless-steel bowl in the top rack of the dishwasher for easy cleaning; hand wash the conveyor system separately. Battery Operated - Feeder requires 4 D-cell alkaline batteries (not included); Feeder can also operate with a power adaptor (adaptor sold separately). Pet Size - Feeder is best for cats and small- to medium-sized dogs