Elastic bands, also known as rubber bands, are flexible loops made from natural or synthetic rubber. They are commonly used to hold items together, such as papers or small objects, due to their ability to stretch and return to their original shape. Their versatility makes them popular in offices, homes, and schools. The elasticity of these bands allows them to expand when stretched and contract when released. This property is due to the molecular structure of rubber, which enables it to maintain its shape after deformation. Elastic bands come in various sizes and thicknesses, catering to different needs and applications.