"Features: Natural boar bristles can evenly spread your sebum from hair root to the ends. Nylon bristles are flexible but stiff enough to hold your hair for hair styling. Aluminum barrel conducts heat fast to shorten the hair blow drying time. Ceramic coating on the barrel emits negative ions during blow drying to eliminate frizz and reduce hair damage. Ergonomically designed handle is non-slip and comfortable to grip. Specification: Item name: Round Hair Brush Color: Golden Material: Nylon + Boar Bristles + Aluminum Barrel diameter: 53mm Hair brush length: 255mm Note: Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting."