Only fits Ninja BL681A blender This item is a wearable part. Per manufacturer, normal wear and tear of wearable parts (such as blending vessels, lids, cups, blades, blender bases, etc.), which require regular maintenance and/or replacement to ensure the proper functioning of your unit, are not covered by warranty. For Return and Refund, please refer to Amazon’s Return and Refund policy. Does NOT fit BL773CO, no exception This package Only works with Ninja BL681A auto-iq blender