Sturdy, double-sided masonite panel with comfortable thumb hole. White surface allows for true color mixing. Hard baked finish is stain-resistant and easy to clean. Perfect for oils, acrylics, and polymers. The 12" x 16" palette measures approximately 15.75" x 11.75"x .13". The 9" x 12" palette measures approximately 11.75"x 9.38"x .13".