THE ONE INCH ALL NATURAL BRISTLE BRUSH IS ONE OF THE MOST USED TOOLS IN YOUR BOB ROSS PAINTINGS. IT IS USED TO PAINT COLUDS, SKIES, WATER, MOUNTAINS, TREES, BUSHES AND NUMEROUS OTHER EFFECTS. YES , IT LOOKS LIKE A HOUSE PAINTING BRUSH, BUT IT IS A FINE ARTIST BRUSH. YOU WILL LOVE IT, DON'T LET THE SIZE SCARE YOU OFF. THIS BRUSH IS A MUST HAVE FOR BOB ROSS PAINTERS. PLEASE REMEMBER TO TREAT YOUR BRUSHES WITH CARE. CLEAN WITH ONLY BOB ROSS ODORLESS THINNER, NEVER USE WATER ON YOUR BRUSHES. THESE ARE OIL PAINTING BRUSHES, DON'T MIX YOUR BRUSHES, USE YOUR OILS BRUSHES FOR OIL ONLY AND YOUR ACRYLIC BRUSHES FOR ACRYLIC ONLY. THAT IS A WAY TO HELP YOU REMEMBER NOT TO CLEAN WITH WATER.