decently durable easy to use could be a bit longer [SEP] these are reasonably durable mask holder bands the fingers that hold the mask straps are thin but i did not experience any tearing even when tugging on them a lot harder than they would be exposed to in normal use the fingers are widely spaced and can deal with flat style elastic bands without a problemmy only quibble is that they are a bit too short in length while using them does increase mask comfort around my ears they would be better if they were about an inch or so longernot ideal but a helpful aid to increase long term mask wearing comfort especially with masks that have short ear loops