Hello Udo
I have been using the following wooden pieces with my Risc 2400.
They have strong magnets. I think they will work with the CG Pro 24.
https://www.amazon.ca/dp/B0C593QBN1?...roduct_details
I did replace the original paper felt with 15mm diameter cloth felt.
They are a pleasure to play with and are actually better looking then the pictures show.
