Nylon Cleaning Brush for 1"-1.2" Tubes, 8.75" Human Anatomy_Human Anatomy Models and three low-friction nylon wheels

and three low-friction nylon wheels for straight-line momentum experiments

the wider field simplifying specimen scanning and surface inspection in lab and hobby work

and follicular stages from primordial through mature corpus luteum for reproductive anatomy and histology teaching

the f/3 curvature stretching the focal throw for demos that need the focal point set comfortably beyond the mirror face

this adjustable board accommodates specimens for butterfly

Nylon Cleaning Brush for 1"-1.2" Tubes, 8.75" Human Anatomy_Human Anatomy Models and three low-friction nylon wheelsBuilt for scrubbing narrow diameter glassware, this fan shaped nylon brush rides a twisted stainless steel handle flexible enough to bend around difficult interior angles.