Rollers for Inclined Plane, 8cm Base_Octagonal letting students switch between low

letting students switch between low and mid-current scales without swapping instruments

sized for hands-on demonstrations of series-circuit current and voltage division

Push-button engagement on a hand-cranked single-sided cone clutch

the smallest size in the series for pendulum and small-scale collision experiments where a compact projectile mass is needed

the spare-letter variant in the family with mechanical specs matching the rest of the line

Rollers for Inclined Plane, 8cm Base_Octagonal letting students switch between lowSolid metal 1kg rollers at 8cm wide by 4. 3cm diameter, running on cone bearings in a cord ready metal frame for friction, acceleration, and rolling motion experiments on inclined planes.