The invention provides a paint roller having a telescopic handle, the handle comprising an inner element (200) and an outer element (100) that slide one in the other, the inner element (200) carrying a member (220) for co-operating with the outer element to prevent sliding, the outer element having an outwardly-directly longitudinal slot, said member traveling along said slot and remaining uncovered while sliding, the roller being characterized in that the longitudinal slot (105) forms a series of arrangements (135) in its longitudinal edges suitable for retaining said member (220, 225) against sliding.