-which would not desire sharpening. Perfect for splitting ice. LEAKPROOFNESS - that provides tightness of the cup contents. Includes gasket, pre-installed in base. Compatibilety: Compatible with thinking about Original (600 ) & for Pro (900 ) blender accessories, for -101S. NOT Compatible: This blender blade WILL NOT WORK for Lean (1200 ), for RX (1700 ) blenders, for , for Ninja blenders, for -201. High quality:the blades are made of stainless-steel that does not want sharpening. free. Perfect seal: Easily screws onto the bottle, sealing it perfectly. Colour:gray Material:Plastic + stainless-steel Package Contents: 1 x Replacement Extractor Blades Only the above package content, different products should not included. Note: Light and various reveals could cause the colour of the article in the picture just a little diverse from the genuine thing. The dimension allowed error is +/- 1-3cm.