Sleeve was delivered in good time but in a rather large box. A padded envelope may have been better. We bought this awhile ago for a weekend away which never happened so recently tried it out for a Birthday treat ! It slips on quite easily, I would advise using lube around the head to get in and leaving the main shaft dry to give grip. As with most toys of this type squeezing the air out before you put on helps. The nodules gave a pleasant feeling and the built in vibe provides very nice sensations which Mrs really enjoyed. The nice moans each time the vibe activated was proof of that and the pushing back to try and keep it going was good for me. It did need a firm thrust to activate the vibe which was both fun and annoying ?