Those are 44 cent Apple Barrel paints from Walmart.
An easel helps the neck, but not the arms. When I hold my arms out with no support under my elbow, after a while my hand will get shaky. You may say, "Keith, that means you need to lift weights and strengthen your arm muscles."
I say it's because my arm muscles are just so massively huge and bulky and weighty, so it's a lot of work for me to lift them. It's logic!
A lady at work puts a tennis ball on the end of a 3 ft. stick, and uses that as a support to rest her elbow on when she paints. The tennis ball is there so the end of the stick won't scratch the painting. She just holds the stick in her other hand and locks it against her body.