100% natural corn bristles. Angled to reach into corners. 3 sew construction. For Customer Support: 9am-5pm EST please call toll free: 1 800 493 2205. 5 Year Limited Warranty: If, during the first 5 years, this product falls due to defects in materials and or workmanship during normal household use, Butler Home Products will replace it with the same product (or an equivalent) at no extra charge. www.thebutler.com. Made in Mexico.