Unplasticized Vinyl Coins Flips By Sacagawea Webstore. A high quality ultra clear coin flip free of softeners and fillers. This allows for an attractive coin flip safe for processing and long term storage. Pre-separated, 7mil, double pocket flips do not require tearing to separate and feature rounded corners that will not poke or cut your hands. Designed for medium to long term storage needs. Great size for 1oz American Silver Eagles and other 1 ounce silver bullion coins.