Ergonomic handles keep your hand in a natural position to prevent fatigue and repetitive-motion injury. Brush is strong and durable, yet light enough to glide through tough grooming jobs. Stainless steel pins are cushioned to ensure that pets are brushed comfortably and the rounded design prevents injury. Comes in medium size. Made of stainless steel pins and rubber handle. Pin surface measures 3-1/4-inch length by 1-3/4-inch width and overall brushhead measures 4-inch length by 2-1/2-inch width.