Compatible For Nutribullet Model RX N17-1001 1700W The Replacement Blade is Made of Stainless steel, Is Dishwasher Safe and Never Needs Sharpening. Name: Knife Block Colour: black Material: plastic + 304 stainless-steel Package Contents: 1 x Knife holder Only the above equipment content, diverse item aren't included. Note: Light taking pictures and various exhibits could cause the color of the item in the photograph a piece diversified from the genuine thing. The measurement allowed error is +/- 1-3cm.