A pull-out guide for furniture parts which can move relative to one another includes at least two pull-out rails, between which at least one first roller body and at least one second roller body are disposed, which are held in a rotatable manner in at least one roller body cage, the at least one first roller body having a greater nominal diameter and a lower modulus of elasticity than the at least one second roller body of the roller body cage. The pull-out guide is characterized in that a difference in diameter (Δd) between a first nominal diameter of the first roller body and a second nominal diameter of the second roller body is greater than a lower limit which is at least as great as a manufacturing tolerance (Δd1) in the diameter of the first roller body.