[PREMIUM MATERIAL]This blade is made of stainless steel, no need sharpening, rustproof and durable.[ DESIGNED]It breaks the ingredients into their nutrient- state, more absorbent with the blade, which can effortlessly transform fruits and vegetables and protein drinks into a delicious and smooth texture.[CONVENIENT] The wires are straightened for easy startup. Includes pre-installed rubber gasket in for a complete seal with mug.[GOOD KITCHEN UTENSILS] Make healthy cooking easier. Makes it easy to prepare your favorite meals and smoothies in no time.[WITH RUBBER SEAL]The threads are smoothed for easy . Includes rubber gasket pre-installed in the to a complete seal with the mug. TIPS: 1. Kindly recommend you replace the blade 6 months for performance. 2. Please the at the bottom is tightened before . 3. Please make the rubber gasket put snugly into the bottom blade. The rubber gasket is used to avoiding leakage. 4. Please make you the bottom blade enough on the cup before using it. 5. To avoid spilling, do not add past the "Max" fill line. with for 600-Watt Series Blender : -101, -101B, -101S, NBR-0601, NBR-0601WM, NBR-0801, NBR-1201 etc. with 900-Watt Series Blender : -201, NB9-0901, NB9-0901B, NB9-0901T, NB9-0901G, NB9-0901PINK, NB9-0901PUR, NB9-0901COR, NB9-0901S, NB9-0901W, NB9-0901RG, NB9-1301, NB9-1301PINK, NB9-1301G, NB9-1301B, NB9-1301COR, NB9-1301K, NB9-1301R, NB9-1301RG, NB9-1301S, NB9-1301T, NB9-1301PUR, NB9-1301W .Colour:gray+silverMaterial:stainless steel + plastic Package Contents:2 * blender blade Only the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.