This Magliner Narrow 8" Wheel Kit is a kit developed because Europeans needed an industrial grade cart that would fit through traditional thinner doors. Outfitting your cart to prepare for the future is not a short term plan, but a long term one. This kit includes 8" swiveling tube type tires and all the mounting hardware. It compensates for European households by whether slimming down to 20" wide. That's about 7.5" less than the standard wheel kit. Because of this, both 24" wide and 18" shelves can be used. The handlebars do not stow under the cart like the full sized version.