Easy to install: these photo corners are self adhesive; The adhesive corners are easy to apply and create a vintage style for photos All papers and stickers are acid free, lignin free and archival quality Application: these photo corner protectors suit for mounting photos, cards in scrapbooks and memory books, or attaching artworks or pictures on the back frame board Create party decorations, themed invitations, cards and other craft projects Feature: these self adhesive corners are useful to stick your artworks or photos easily, and they will not damage the artworks and photos when you take them down Colour: colourful Product includes: 20pcs Size: 5.8*9cm Notes: Please allow 1-3cm error, due to manual measurement, please make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual colour of the item. Thank you for your support