[PREMIUM MATERIAL] This blade is made of stainless steel, does not require sharpening, and is rustproof and durable. [DESIGNED FOR PERFORMANCE] The blade breaks down ingredients into a nutrient-rich state, providing better absorption and effortlessly transforming fruits, vegetables, and protein drinks into a smooth and delicious texture. [CONVENIENT USE] Straightened wires allow for easy startup. Includes a pre-installed rubber gasket to ensure a complete seal with the mug. [ESSENTIAL KITCHEN UTENSIL] Helps make healthy cooking easier and allows quick preparation of meals and smoothies. [WATER-RESISTANT SEAL] Threads are smoothed for easy handling. Features a pre-installed rubber gasket to create a secure seal with the mug. TIPS: 1. It is recommended to replace the blade every 6 months for optimal performance. 2. Ensure the blade at the bottom is tightly secured before use. 3. Make sure the rubber gasket is snugly fitted into the bottom blade to prevent leakage. 4. Confirm the bottom blade is securely tightened onto the cup before use. 5. To avoid spills, do not fill above the "Max" line. Compatible with 600-Watt Series Blender models: -101, -101B, -101S, NBR-0601, NBR-0601WM, NBR-0801, NBR-1201, etc. Compatible with 900-Watt Series Blender models: -201, NB9-0901, NB9-0901B, NB9-0901T, NB9-0901G, NB9-0901PINK, NB9-0901PUR, NB9-0901COR, NB9-0901S, NB9-0901W, NB9-0901RG, NB9-1301, NB9-1301PINK, NB9-1301G, NB9-1301B, NB9-1301COR, NB9-1301K, NB9-1301R, NB9-1301RG, NB9-1301S, NB9-1301T, NB9-1301PUR, NB9-1301W. Color: Gray + Silver Material: Stainless Steel + Plastic Package Contents: 2 x Blender Blades Note: Only the items listed above are included. Light display and different screens may cause slight color variations compared to the actual product. Measurement may vary by +/- 1-3 cm.