Specifications Battery Included:No Hign-concerned Chemical:None Model Number:X239 Certification:None Certification:ce Forward Speed:0 Origin:Mainland China Brand Name:TQSDYY Power Type:Other Feature:Steel Chasis Cutting Width:0 Motor:Brushed Stainless Steel Replacement Knife Blades with Hex Key Set Garden Lawn Mower Accessories For Robomow RX Professional brand new and high quality Features: The stainless-steel blade is easy to replace using the supplied screws and hex key. It is recommended that you change the blade of your Robomow lawnmower once a year. Robust, sharp stainless-steel blade, powerful mulching mower, perfect even for overgrown lawns. Specification: Compatible Model: For Robomow RX Material: Stainless Steel Length: app.11cm/4.33in Color: Silver Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Replacement Blade 1 x Hex Key 2 x Screws