16-Piece Wooden Geometric Shapes Set with Storage Case Subcategory_Electricity and Circuits 5m of twin flex for

5m of twin flex for connection to mains-grade optical-bench setups

5% accuracy with a 60mm scale

Eleven-ohm 5A air-cooled rheostat with constantan winding on a 300x44mm vitreous-enameled steel tube and a slide-bar carriage carrying a phosphor-bronze contact

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

16-Piece Wooden Geometric Shapes Set with Storage Case Subcategory_Electricity and Circuits 5m of twin flex forHardwood geometric shapes in a 16 piece set, housed in a 5. 875 by 3. 875 inch wooden storage box for tactile spatial reasoning drills and solid geometry exploration.