<p>This Blade is made with super strength food grade stainless steel material and the bottom made with the food grade BPA free plastic material. <p><b>Compatibility</b> <br>Nutribullet 600 Watts Blender <br>Nutribullet Pro 900 Watts Blender. <br> Please don't use it on other blenders not list above. <P><B>TRUST BUECMUE REPLACEMENT PARTS , ENJOY LIFE CAREFREE </B>