They are very easy to install and Ive had no issues with them. I bought these recently to use with my Kindle Oasis to hear books from Audible, and they work fine. As for the actual product very cheaply made and very thin. I’ve only worn them twice and they are already full of little nicks all the way around, which is unusual. 良すぎっ！！！！！！！ It is a very nice shoe but in less than 1 month of use was broken, and the seller tells me he can not do anything about it, despite having sent the photos which shows that everything is taken off and has no use. So 3 extra ⭐️ ⭐️ ⭐️ for great customer service. until I dropped one in the dishwater. 0/5 stars. I will be keeping these forever.