Concave Glass Mirror, 150mm (5.9") Diameter, 300mm Focal Length Pack Size_16 this ray box gives students

this ray box gives students a controllable light source for reflection

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

this electromagnet on a 4mm-terminal base slots inline with other modules for circuit-driven magnetism work

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

Concave Glass Mirror, 150mm (5.9") Diameter, 300mm Focal Length Pack Size_16 this ray box gives studentsConcave 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.