This resistor decade box accommodates 3W resistors, and it is recommended to use resistors with a tolerance of 1% or better for optimal accuracy.

It allows you to precisely select the resistance value required for your testing circuit. Widely used in prototype circuits, analog electronics, signal conditioning, and laboratory experiments. Its modular design enables quick combination of different resistance values, making it ideal for testing, calibration, and troubleshooting. The sturdy casing ensures long-lasting durability, while the clearly labeled dials provide easy readability and fast adjustments. Suitable for both professional engineers and hobbyists, this decade box streamlines experimentation with resistive loads and ensures accurate measurements across a variety of electronic applications.

You can purchase the resistors needed here:
https://s.click.aliexpress.com/e/_c3sD6MuF 
You will need 9 pieces of each: 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, and 100 MΩ.

Also the banana Plug Sockets With Binding Post Terminals here:
https://s.click.aliexpress.com/e/_c4qxKygL

Encoders can be obtained from this supplier:

https://s.click.aliexpress.com/e/_c3hBBbE9

or
https://www.lcsc.com/product-detail/C19077039.html