These VICASKY caster wheels are such a simple but genius upgrade for so many things around your house! You get 8 blue wheels that are about 2x1 inches each, with strong self-adhesive backing that sticks to smooth, flat surfaces. Perfect for adding mobility to storage boxes, tissue boxes, small trash cans, toy cars, or any lightweight furniture that you'd like to move around easily. The fixed design (they don't swivel) makes them stable, and the solid rubber rollers are wear-resistant and move smoothly. Installation couldn't be easier - just clean the surface, peel off the adhesive backing, press firmly for 30 seconds, and you're done. No tools, no drilling, no mess. They're practically invisible once installed on the bottom of your items. Game-changer for things you frequently need to access - like under-bed storage boxes that you're always pulling out, or trash cans that need moving for cleaning. The adhesive is surprisingly strong but can be removed if needed. For the price, you're getting so much functionality - suddenly everything in your house becomes mobile! Definitely one of those cheap DIY upgrades that you'll wonder how you lived without once you start using them.