Interchangeable Dial for Demonstration Meter, Model H Health & Genetics_Equipment & Supplies Plastic strip with two crocodile

Plastic strip with two crocodile clips and 4mm sockets

letting students read image height and position directly off the projected real image during focal-length investigations

this six-lens glass set covers double convex

sized to fit tight laboratory frames while carrying heavy loads

gripping cylindrical items from 15 to 60 mm alongside an integrated boss head for retort rods

Interchangeable Dial for Demonstration Meter, Model H Health & Genetics_Equipment & Supplies Plastic strip with two crocodileFive hundred milliamp DC scale on a 315x115mm laminated panel with sealed shunt, sized to reconfigure the demonstration meter as a 0 500mA ammeter for general purpose student bench work.