[Fit For] Compatible with 600W and Pro 900 High-Speed Blender/Mixer Systems – Models 101B, 101S, 201, and Flat Milling Blade. Not compatible with Lean, RX, or other blender models. Please verify your model before ordering. [Premium Quality] Seal O-ring and shock pad are made of high-quality materials. Black gear and motor top base gear are made of plastic. These replacement parts are safe and designed for long-term use. [Easy to Install and Replace] Replacement parts are recommended for replacement every 6 months or as needed for optimal performance. Install by replacing original parts one at a time—no tools required. Saves time and enhances convenience. Color: As shown Material: Plastic + stainless steel Package Contents: 1 set of blender replacement parts Note: Light reflection and screen settings may cause slight color variation between the image and the actual item. Measurement tolerance: ±1–3 cm.