Ceramic Ring Magnet, 1.375" OD x 0.75" ID, 5-Pack Lab Equipment_Power Supplies Large frog dissection model with

Large frog dissection model with numbered structures reveals digestive

Glass convex mirror at 100mm diameter and 150mm focal length

Pairs 74mm of length with a 50mm hypotenuse on a polished acrylic right-angled prism

Hand-painted enlarged eye model separates into six parts

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

Ceramic Ring Magnet, 1.375" OD x 0.75" ID, 5-Pack Lab Equipment_Power Supplies Large frog dissection model withFive ceramic ring magnets at 1. 375 inch outer, 0. 75 inch inner, and 0. 3125 inch thickness, sized to stack on a vertical rod for like pole repulsion levitation demonstrations.