3pcs Pastry Brush.

a 3-piece Pastry Brush Set. 

This set typically includes multiple brushes of varying sizes, designed for various culinary tasks like:

• Basting meats and poultry with marinades or sauces during cooking or grilling.
• Applying egg washes, melted butter, or glazes to pastries, bread, and other baked goods.
• Oiling pans and griddles to prevent sticking.
• Cleaning crumbs from work surfaces, particularly with natural bristle brushes. 

These brushes can be found with either natural bristles (like boar bristles, known for their absorbency) or silicone bristles (which are heat-resistant, easy to clean, and don't shed). The specific set in the image appears to have white bristles, which could be either natural or silicone.