[Fit Models]: ONLY Fits For 250-Watt Magic-Bullet Blender ( MB1001 Series), Does NOT fit Mini Magic-Bullet or Bullet, Does NOT fit Any Nutribullet or NutriNinja Magic-Bullet . [High Quality] : Food Grade Plastic and Stainless Steel , Each magic-bullet replacement blade comes with a gasket and hard plastic gear on the bottom. Prior to use, check each gasket to ensure it is not damaged, and it is completely seated in the blade. Material: plastic colour: black Package Contents: 1 x Slotted knife holder 1 x Cross knife holder Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.