Can these brushes be used with oil paint?

The set is listed for oil as well as acrylic, watercolor and gouache. Nylon hair is not the ideal match for oils because it absorbs less medium than natural bristle, so expect a stiffer feel and clean them thoroughly with solvent.

Are these brushes good for beginners?

Yes. A 15-piece assortment lets a new painter try different shapes and sizes before committing to individual brushes. The nylon hair is springy and easy to control for acrylic and craft work.

Fifteen paint brushes in assorted shapes and sizes. The set does not list the individual brush sizes or shapes.

Are they suitable for kids?

The set is listed as suitable for kids, teens and adults, so it works as a shared household or classroom kit. Younger children should be supervised with paint and cleaning.

Do they work for rock painting?

Yes, rock and craft painting are among the listed uses. The smaller brushes in the set handle dots and fine lines, and the larger ones cover backgrounds.