Review on AIEVE Mason Jar Lids: 4-Pack Reusable Flip Top Regular Mouth Canning Lids for Leak-Proof Seal and Convenient Pouring - Ideal for Milk, Coffee, Lemonade (Jars not Included) by Steven Murray

Overall I really like these caps. I bought them primarily to store liquids (iced tea, coffee, etc.) and other things without using Tupperware plastic paraphernalia. My main issue is that they are not fully drop proof as you can see in the attached pictures. Also the cap and flip cap are slightly different in color (as stated in the product description) but this gives the product a cheaper or older look. The pads seem to work well and I haven't had any issues with leaks, but they fall out easily and are quite cumbersome to take out and replace. I would like the manufacturer to indicate on the package insert if they are microwave and dishwasher safe. They are probably best used in the case of a beverage cap.