An Eye Beautifier Brush Set usually includes around 5 brushes, each with its own unique shape and purpose.Brush materials: The bristles of the brushes are usually made of synthetic fibers or natural hair. Synthetic fibers are often preferred for their durability, ease of cleaning, and ability to pick up and distribute product evenly. Natural hair brushes are typically softer and can provide a more luxurious feel during application. The handles of the brushes can be made of different materials, such as wood, plastic, or metal. The choice of material can affect the weight, grip, and durability of the brushes.The brushes included in the set can vary, but common types include shader brushes, crease brushes, blending brushes, smudger brushes, angled brushes, and brow brushes.