Fangrui Product Details Non-slip Design: The Wheel Tires Are Designed With Grooves, Making It Create A Great Grip And Prevent It From Slipping. Easy To Install: The Machine But Not Too Tight, Easy To Take Apart And Install. (notice: Please The Nubs Are Aligned With The Corresponding Notches While Replacing.) Premium Quality: Made Of Premium Rubber, More Soft And Flexible Than The Official Tires. Improve Cleaning Efficiency. Compatibility: The Parts Work Well With Jet M6(6110,6012,6112,6113), Making It Worn-out Tires For Cleaning Performance. Save Time And Money: The Wheel Parts Repalce Worn Tires, No Need To Buy Expensive Parts, Clean Efficiently And Save Your Time And Money. Colour:black Material:rubber Package Contents: 1 Pair X Wheel Tires 1 X Screwdriver Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection 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.