10 Kg bag for the main work. You can bring your own or you can buy it on the first day of the workshop.
You can buy 2 spatulas, a big one and a medium one available
on the website for $40 + shipping. This will help you to do
most of the work.
You can also use your own tools, just remember ceramic tools are not ideal for sculpting.
Some carvers can be helpful too.
Will be supplied.