Laundry labels are for labelling the clothes in your wardrobe, with information such as their colour, material, washing instructions, etc.. 
These labels withstand washes up to 50 degrees Centrigrade, and tumble drying. 
No need to stitch on, or iron on. Just finger-press firmly, and wait one week before washing. 

Now you have the freedom to wear different colours confidently!
There are three sets of 48 labels in each. 

Since they are waterproof, some people also use these labels as garden tags.