1lb Painted Metal Inertia Ball with 3 Eye Bolts Type_Cross-Sectional Quarter-scale full-body muscular model at

Quarter-scale full-body muscular model at 18 inches tall shows superficial muscle groups in anatomical position

this sonometer carries brass and steel wires across a 114cm wooden box with two millimetre rules

sized for sustained workshop work where the smaller 25W and 65W irons can't keep heavy joints flowing solder

One hundred numbered slots in a hardwood storage box hold standard microscope slides for ordered reference and classroom slide-library organization

1lb Painted Metal Inertia Ball with 3 Eye Bolts Type_Cross-Sectional Quarter-scale full-body muscular model atOne pound metal ball painted black with three fixed eyebolts of 3 8 inch inner diameter, configurable as a heavy pendulum bob or a demonstration mass for Newton's first law setups.