Sam the skeleton is a highly detailed model skeleton which demonstrates the movements of the skull via the head joints and fully flexible spine. You can adjust the model to place it in natural body postures. The unique combination of muscle origins and insertions the numbered bones flexible ligaments and flexible spine with a slipped disc between the 3rd and 4th lumbar vertebrae clearly the show medical and anatomical interest of this top model's more than 600 structures. Hand-painted muscle origins and insertionsFlexible spine and ligamentsSlipped disc between the 3rd and 4th lumbar vertebraeProtruding spinal nerves and vertebral arteries3-part assembled skull with individually inserted teethMade from a durable unbreakable synthetic materialQuality life size natural castingClose to the realistic weight of around 200 bonesFinal assembly carried out by handOn a stable metal stand with 5 castorsCan be removed from standFull flexibility of limbs on left side right side has full flexibility of knee and hip with limited flexibility of elbow and shoulder3 year manufacturer guaranteeEasy to remove limbsTransparent dust coverHeight: 1.7M