Concave Glass Mirror, 150mm (5.9") Diameter, 300mm Focal Length Pack Size_16 Lead-free five-cylinder equal-mass set at

Lead-free five-cylinder equal-mass set at 30g each in zinc

Life-size elbow joint model shows humeroulnar and humeroradial articulations with supporting ligaments and arm muscle insertions for upper-limb anatomy teaching

Tensioner pulley keeps chain engagement consistent on this hand-cranked chain drive

oral cavity

Chrome-plated metal-framed 50mm reading magnifier with a 12cm focal length

Concave Glass Mirror, 150mm (5.9") Diameter, 300mm Focal Length Pack Size_16 Lead-free five-cylinder equal-mass set atConcave glass mirror at 150mm (5. 9 inch) diameter and 300mm focal length, the f 2 geometry combining a wide light gathering face with moderate throw for projection and image work.