I got tired of frozen mystery meals which I then had to defrost to find out what they are - bean stew/potato curry/chilli - it's anyone's guess. Occasionally I used white sticky labels but they often left a tacky patch where they'd been. These you can write on with an ordinary biro, stick securely to plastic lids, don't unstick in my freezer, but simply peel off after use, with no need to soak and no tacky patch left behind. These small ones have enough room for a description and date, so perfect for me. Also planning to use to label jam/chutney/marmalade from now on.