Eco Tools Interchangeables Flat Foundation is a classic flat brush head designed for controlled foundation application, offering precise coverage and a smooth finish. Engineered to work with the reusable Interchangeables Handle, it provides an eco-friendly way to apply makeup while cutting down on plastic waste. With soft synthetic bristles and sustainable craftsmanship, this brush head is part of Eco Tools’ commitment to creating versatile, environmentally responsible beauty tools.