The ENHANCING EYE SET is designed with 4 brush heads to shade, define, blend and smudge. EcoTools earth-friendly Brushes show respect for the planet with synthetic bristles that are 100% cruelty-free, and a handle made from bamboo, a highly sustainable plant. Environmentally friendly, chic, high-quality, and affordable. Ecotools uses recycled materials, renewable bamboo and better manufacturing processes.