Based on this product's specifications, here are some alternatives and similar models
Makeup Brush Donegal PROFESSIONAL 214 for Eyeshadow (model 4239)
Summary description:
Donegal PROFESSIONAL 214 is a makeup brush designed for applying and blending eyeshadow. Model 4239 is intended for precise placement of powder and cream shadows, crease definition and shading. Compact head and tapered bristles provide control for detailed eye work, suitable for professional and everyday use in creating subtle or dramatic eye looks.