vibrator

Asslamu Alaikum.I would like to know whether or not it is permissable for a woman to use a vibrator in order to satisfy herself sexually. Also, it is permissable for her to insert her finger into her vagina, for the purposes of sexual satisfaction?I do understand the best way for men and women to reduce their sexual desire is to marry, so when answering my questions, please can you bear in mind, this may not be a possibility for all concerned.Jazahkallahu khayr.