Extraction Blade For Nutribullet Nutri Bullet Replacement 600W 900W Gear threaded: Positive threaded Product fit: Nutri Bullet only Installation: Replacement,Power: 600W & 900W Note: 1.Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you