These Cedar Fresh cedar rings are a compact solution to stale closets and pesky moths. Made of solid eastern red cedar. These discs are 2 inches wide with an insert large enough to fit over most wire and plastic hanger hooks. No need to worry about rounding-up scattered mothballs, simply insert these cedar rings over the hangers of your choice for quick and easy moth repellent. These cedar rings are perfect for delicate clothing. They are non-staining and have smooth rounded edges to discourage snagging.