Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
rubber [ˈrʌbər] n (substance) рези́на, каучу́к (BRIT) (eraser) рези́нка, ла́стик (US) (inf)(condom) презервати́в
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.