Flexible and posable mannequins are for customers looking to create their own pose with their mannequins. A majority of mannequins are made of either plastic or fiberglass and are basically "stuck" in the pose that they're in. The shoulders normally do not move up and down nor do the elbows move for most mannequins. That's where posable and flexible mannequins come in. These flexible mannequins have varying levels of flexiblity and posability depending on the model. Some of them only have shoulder and elbow joints that can move. Others are made out of a dense foam that can be posed into any kind of position.