Andis Stainless Steel Power Trim D4 Pet Replacement Blade, Size-30, 1/150-Inch Cut Length Replacement Blade is designed for use with the Andis power trim cordless trimmer Blade is made of high-quality stainless steel Long-lasting performance Square blade set is used for very close trimming Measures 4-1/2-inch length by 3-4/5-inch width by 4/5-inch height