Bell Demonstration Model, All The Components Of Electric Bell Are Mounted On A Large Panel. Allwiring Is Visible And Parts Are Of Large Size. Operates On 4-6 Volts Dc, Mounted On A Large Panel, All Parts Easily Visible, Rigid Constructions
Best-of-Ruediger-Skeleton, It combines all the benefits of our Super-Duper-Skeleton with additional muscles of face, jaw, masticatory and laryngeal region as well as superficial, deep and deeper muscles of the neck, comes with a flexible spine, spinal cord