and excessive quality. Made of fantastic material, sturdy and reasonable to use. The wheels are critically worn, unable to hook up with the rough ground, and the pushing resistance is increased. The wheels can't contact the ground, causing the shell to scratch the floor for a long time. Long-term friction of the shell will bring about a series of chain reactions similar to burrs, abrasion of the lowest cover, and drop of the comb bar. It is advised that the wheels get replaced every 6-12 months Axles and Rollers Replace section number: 967435-01 For DC35/DC44/DC45/DC59/DC62 All V6 SV03, SV05, SV06, SV07, SV09 Absolute, SV09 Fluffy and additional color:Black+silver Material:plastic Package Contents: 6 x Axles 6 x Rollers Only the above package content, various merchandise shouldn't included. Note: Light reflection and assorted exhibits may cause the colour of the object within the photo somewhat varied from the real thing. The size allowed error is +/- 1-3cm.