Miniature Articulated Human Skeleton Model with Stand, 17.5" Tall Physics_Light & Optics reducing the need for separate

reducing the need for separate tool types

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

Rotation-to-linear gear-rack simple-machine model converting circular gear motion into straight-line rack travel

Cut-away 17-inch active volcano model reveals magma chamber

bottle in borosilicate glass holds 125mL with glass stopper for biological oxygen demand testing and water quality analysis

Miniature Articulated Human Skeleton Model with Stand, 17.5" Tall Physics_Light & Optics reducing the need for separateArticulated joints allow posing the 17. 5 inch skeleton in various positions for kinesiology demonstrations, mounted on a rod stand for tabletop reference.