Stamping Rollers are designed to print onto a surface. This surface can be, and not limited to, walls, ceiling, furniture, wood, and fabric. These Patterned Paint Rollers measure 7 inches across, not including the silver pins and approximately 2 inches in diameter. They are made of a durable, soft rubber and are easy to clean after being used. You will need a Patterned Paint Roller Applicator Handle that fits 7 inch rollers.