You CAN use this on your IKEA, for example in your Besta cupboard, instead of the screw-in 'legs' you normally use to level the unit. So you can move your Besta TV with the help of wheels. [Because :::: IKEA discontinued their own casters, Rats.] The threads on this caster are smaller than the threads on the IKEA "legs" so you just pop them where you normally would an IKEA would screw on the leg. But it's close enough to the right size so it doesn't wobble, and it's the right length. For reference, this item is ONE roll. A bit pricey but it certainly looks solid and I love how the brake works.