Rollers for Inclined Plane, 8cm Base_Octagonal drawing 4-6V DC through 4mm

drawing 4-6V DC through 4mm sockets for current-versus-lift-force investigations

Non-magnetic metal pillar topped with a carbon-steel point on a 2

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

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

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

Rollers for Inclined Plane, 8cm Base_Octagonal drawing 4-6V DC through 4mmSolid 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.