1.Stainless steel blades are polished and nickel-plated, sharp and durable. 2.A movable safety shield is installed on the blades to prevent over cutting. 3.Spring devices between the handles allow smooth cutting and trimming. 4.A safety lock allows you to lock the clipper when it's not in use and ensures safe storage. 5.A nail file at the end of the handle is used to trim the nail after cutting. 6.The handle is made of TPE and PP which are environmentally friendly materials. This protects human and pets from skin allergies.