Material: high quality plastic, Size: 2.4 x 11 cm. Easy to write on both sides with a permanent marker or pencil and highly visible. Easily cleaned with household cleaner for reuse. These plastic tags are waterproof and really help to remember where. Diameter of hook hole: 2cm, easy to hang on a tree and easy to remove. Package Content:Greenhouse Clip*100 Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement etc, there may be some slight differences in the color and size between the photo and the actual product. Sincerely hope you can understand! Thank you!