Features 1、Size and Margins: The book corners have 2.5 x 0.4 cm size with 3.5 cm margins, please check the size before buying 2、Practical Function: The photo corners can prevent damage to your beloved photo albums and notebooks, which meet your daily needs 3、Iron Material: The scrapbook picture corners are made of iron material, which is not easy to break, with glossy appearance, can be used repeatedly 4、Easy to Install: You just need to choose a suitable thickness of the metal book corner to insert into the book cover, and then press the metal book corner tightly 5、Wide Compatible: The metal book corners can also be used for jewelry boxes, gift boxes, scrapbooking, card making and photo albums etc Specification Item Type: Book Corners Material: Iron Side Length: Approx. 25mm / 1.0in Inner Height: Approx. 4mm / 0.2in (manual measurement, there will be 0 to 1mm/0 to 0.04in error) Specifications: At Least 100 Package List 100 x Book Corners