Set of 20 Alloys, Cardboard Box Material_Aluminum Concave glass mirror at 50mm

Concave glass mirror at 50mm diameter and 50mm focal length

Six-piece 3-inch optical lens set combining three double-convex and three double-concave glass lenses at 200mm

and nucleus out of the cell body for hands-on organelle identification in cell biology teaching

Solid metal 400g roller at 7cm wide by 5cm diameter on cone bearings in a cord-ready metal frame

Long 1000mm black 2mm-plug lead with a crocodile clip on the opposite end

Set of 20 Alloys, Cardboard Box Material_Aluminum Concave glass mirror at 50mmSet of 20 different alloys supplied in cardboard box. Set of 20 different alloys supplied in cardboard box. Each specimen labelled with name.