Une/Un/Des. And A GOOD French Tip :)
These are all indefenite articles (a or an) des, is a plural version of a, une is femenine, and un is masculine. ALSO, 75 percent of the time if an E is on the end of words it is usually Femenine, NOT ALWAYS. Also, I found a good series on youtube called Learn French with Alexa.
I won't downvote your post but I didn't find it particularly useful and I don't think many will (apart from 'Apprendre le francais avec Alexa'). Why? Because this information is very basic but also potentially misleading. Yes "des" is a plural but is so much more than an indefinite article. Also, the problem with 75% of words ending in E being feminine is that this is practically of little help as some words which instinctively seem masculine are feminine and vice versa. Also this statistic doesn't account for the popularity of the words. So the most commonly used words in the 25% exceptions list can occur far more regularly than some in the 75% category. I'm really saying that if you are going to post a tip for everyone, give more detail or explain it properly so that people coming along will be able to use your information.