The Model illustrates the effect on the spine of an unsafe posture when performing weight lifting. It allows you to regulate the position of the front foot, thus presenting the correct position to lift a load in a more realistic way. The figure will lift a weight from two clearly marked positions. with the correct position, the spine is not distorted. Instead, incorrect posture causes obvious spinal distortion, clearly showing spinal conditions during a correct or incorrect lift. FDM 3D printing Maximum working temperature: 60C – 140F Note: Store in cool places, away from heat sources. New elastic band high resistance, high durability