General description The 5 Fins Blender Blade is a replacement part designed for various blender models, ensuring compatibility and performance similar to the original blade. It features a diameter of 3.15 inches (8.5 cm) and is made from durable plastic and stainless steel. Technical specifications Blade Size: 3.15 in (Diameter) x 3.1 in (Overall height) Weight: 0.88 lb (2 PCS) Material: Plastic + Stainless Steel Color: Black Compatibility and accessories Compatible with models: QB3000, QB3000SSW-30, QB3000QR-30, QB3001SS-30, QB3000QBK, QB3004, QB3005 Not compatible with models starting with Bl2, Bl4, Bl6, Bl7, BL8, BN, NN, CT, QB Package Contents: 1 x base, 3 x sealing ring, 1 x cleaning brush (random color) Usage Do not overfill the blender; adhere to the "maximum" fill line to avoid overflow. Limit blending time to 4 minutes to prevent overheating. Replace the blade every 6 months based on usage frequency. Check the bottom gear for looseness before use and tighten if necessary.