Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon Compact 32cm skeleton model fits

Compact 32cm skeleton model fits desk displays and small teaching spaces while preserving proportional bone structure for individual-study anatomy reference

75 inches of usable track gives upper-division optics setups the rigidity needed for lens

Combines detailed cranial anatomy with a removable life-size brain

this kit illustrates water movement across semipermeable membranes for classroom biology instruction

Feed indicator is in front and fed setting is at back of microtome which sets 1-50 micron

Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon Compact 32cm skeleton model fitsHall's pattern carriage set of four ABS cars with different wheel types, sized to compare rolling friction coefficients across surfaces and demonstrate how wheel design affects energy loss.