Do you own/use sleeves or masturbators?

Contributor: Leil@ Leil@
Originally posted by NcaseUdntno
I got one, and it's slipped off every time I try urs it. So disappointed. Do I need to cut it? If so, where and how?
I'm sure it is not a good idea to cut it.
Could you please clarify what you mean by saying it slips off? Also, do you own a sleeve like this or a penis extension like this one?