Beakers are typically stable due to their wide bases, which provide a large surface area for contact with the supporting surface. This increases the beaker's resistance to tipping over. Additionally, beakers are often made of materials with a high coefficient of friction, such as glass or plastic, which helps to prevent them from sliding easily. The shape of a beaker also contributes to its stability, as the sides of the beaker flare out slightly towards the top, creating a wider base and a lower center of gravity. This design helps to distribute weight evenly and reduces the likelihood of tipping. Some beakers may also have a spout or lip at the top, which can help to control the pouring of liquids and further enhance stability.