I know uncut guys can be much more sensitive but I hope nothing he gets is painful! I have a fleshlight, tenga flip hole and have used other sleeves before. I am cut so my sensitivity is greatly reduced and probably different than your husband's. If you want an inexpensive sleeve to try out, even the tube love glove or the blush extra long stroker can give you an idea for starters. You don't need to break the bank when you start off and that will give him the chance to figure out if masturbation sleeves are for him or not.

If he tries one of those and likes them, then you can work your way up to something pricier and 'better.' If he doesn't like the sensation, or if it is 'painful' then you aren't out a lot of money on something that won't get used any more. I always recommend plenty of lube with any masturbator. I hope you find something he likes.