Personal Information Protection Seal Set of 30 Size: 13.5 x 9.5 cm These are simple blue seals for privacy protection. They are useful for covering personal information on postcards. How about using them when applying for sweepstakes? We appreciate your understanding if you are comfortable with items kept at home. They can be peeled off without damaging the backing paper, making them convenient for making your own stickers or for crafts. Thank you! Release paper