Nursing bottles are containers designed for feeding infants and young children. They typically consist of a bottle made from glass or plastic, a nipple that mimics a mother's breast, and a cap to prevent spills. Nursing bottles allow caregivers to provide milk or formula to babies when breastfeeding is not possible or convenient. These bottles come in various sizes and shapes, catering to different age groups and feeding needs. Some nursing bottles are designed to reduce colic by minimizing air intake during feeding. Accessories like bottle brushes and sterilizers are often used to maintain hygiene and ensure the safety of the feeding process.