1. Material: stainless steel 2. Hydraulic Seal Installer: The Tie Rod Seal Installer Tool Kit is a quick and safe installation tool. Includes 3 sizes to cover virtually any tie rod seal installation job over 0.87 inches. 3. Easy and quick installation: The hydraulic tool bends the seal into a kidney bean shape to help insert and install it into the cylinder groove, easy and quick to use. 4. Non-slip design: The hydraulic repair tool kit adds multi-color plastic handles to avoid slipping during use and is easy to identify. All edges of the product are polished and smoothed. 5. Wide application: The hydraulic cylinder gland sealing tool is suitable for installing automotive marine hydraulic cylinders, bucket cylinder internal seals, O-rings, automotive marine internal flexible rod seals, skid steer loaders, loaders, excavators, etc.