Dematting Comb/Rake/Tool for Dogs & Cats. 9 Serrated Blades Cut Mats Knots Tangles. Blades Reverse for Right or Left Hand Use. Stainless Steel Blades. Thumb Rest & Ergonomic Soft Grip Handle This dematting comb can slide underneath mats and knots and gently cut them apart as you work the serrated blades through the mat. This is a serious heavy duty tool for even the toughest mats, knots and tangles. You wont be disappointed. 9 serrated stainless steel blades to cut through tough mats and knots; thumb rest for firm grip; rounded safety edges to prevent irritation or scratching; ; simply remove the nut and reverse the blades for either right or left-handed use Use on small, medium and large cats & dogs with short, medium or long hair Made with ABS/TPR; ergonomic non-slip comfort handle; sturdy and durable construction will last a lifetime 7.5 x 3 x 1 inch; 100% Money Back Guarantee