  For abelian groups $A, B$, $A$ is called $B$-small if the covariant functor
$Hom(A,-)$ commutes with all direct sums $B^{(\kappa)}$ and $A$ is self-small
provided it is $A$-small. The paper characterizes self-small products applying
developed closure properties of the classes of relatively small groups. As a
consequence, self-small products of finitely generated abelian groups are
described.
