A dolly (10) comprises a body (12) having an upwardly projecting first locating formation (20) for locating a further dolly thereon in a stacked condition of said dollies. The body (12) has a second locating formation (21) for stacking the dolly (10) on a further dolly in a stacked condition of said dollies. The first locating formation (20) is engageable with a second locating formation on the further dolly stacked on the first mentioned dolly, and the second locating formation (21) is engageable with a first locating formation of the further dolly on which the first mentioned dolly (10) is stacked.