The moisture meter can quickly measure the moisture content of the grain. 1. 6 COLORS: Various bright colors are available, including blue, red, green, yellow, orange and purple, not only meet different needs, but also help to classify files according to different colors 2. SIZE DETAILS: the inner diameter of the plastic ring of loose leaf is 27mm, and the bond thickness should not exceed 27mm 3. PACKAGE QUANTITY: You will receive 90 pieces of binders in multiple colors, enough for long-term use 4. WIDE RANGE OF APPLICATIONS: suitable for binders, business cards or note cards, classrooms, offices, homes, can also be used as a keyring, perfect for storing stacks of documents, keys and samples, easy to use for office and home storage 5. Durable plastic: Since the material of the flexible book loop is plastic, sturdy and durable and will not break or crack, the loop opens and closes easily for long-lasting use Specification: Item Type: Plastic Loose Leaf Rings Inner diameter: approx. 27 mm / 1,06 inch Color: Yellow, Red, Blue, Orange, Green, Purple List of packages: 15 x Yellow Plastic Loose Leaf Shaped Rings 15 blue plastic loose leaf shaped rings 15 x Green Plastic Loose Leaf Shaped Rings 15 x Purple Plastic Loose Leaf Shaped Rings 15 x red plastic loose rings with leaves 15 x Orange Plastic Loose Leaf Shaped Rings