Banana Electronic Construction Kit for Education. You can put it on magnetic board for better visualisation.
Banana Panel Socket Connector
https://www.aliexpress.com/item/32785322923.html
Banana Plug Connector
https://www.aliexpress.com/item/32758916948.html
Inserts Brass (M2x5x3.5mm)
https://www.aliexpress.com/item/32842866575.html
Screws Flat Head (M2x5mm)
https://www.aliexpress.com/item/32871056705.html
Screws (M2x10mm)
https://www.aliexpress.com/item/32800150493.html
Hex Nut M2
https://www.aliexpress.com/item/32585008102.html
Neodymium Magnet 30x10x4mm
https://www.aliexpress.com/item/32644945544.html
Battery Holder 3xAA
https://www.aliexpress.com/item/32994333081.html
Socket E10 (1153-500)
https://www.gme.cz/objimka-e10-1153-500
Bulb E10
https://www.gme.cz/argonova-zarovka-ab-3-8v-0-2a-e10
LED E10 4.5 V
https://www.aliexpress.com/item/32834935405.html
LED 5 mm
https://www.aliexpress.com/item/32848810276.html
Electric Wire Cable
https://www.svetsoucastek.cz/vodic-h05v-k-0-75mm-cerny-p54680/
https://www.svetsoucastek.cz/vodic-h05v-k-0-75mm-cerveny-p54683/
The author marked this model as their own original creation.