Malloom 100PC 2.3"*3.9" Plastic Plant DIY T-type Tags Markers Nursery Tray Ga... Material:Plastic Size:6CM*10CM/2.3"*3.9" These plastic plant tags are waterproof and will not brittle and snap like most plastic tags. They will not rot as wooden tags and metal tags.the lables easy to write And best of all they are short enough to fit in a mini green house or humidity dome.