Comprehensive Crafting Kit: This set includes 50 blank aluminum bookmarks, 50 clear self-sealing bags, and 50 colorful tassels. Perfect for DIY sublimation and heat transfer printing, these materials are ideal for creating personalized bookmarks for various occasions. Durable Material with Protective Film: Crafted from sturdy metal aluminum, each bookmark is designed for durability and is suitable for single-sided printing. A protective film covers the surface to prevent damage during handling; remove this film before starting your customization process. Functional Design: Each bookmark features a pre-punched hole at the top, making it easy to attach the included tassels. This design not only adds a decorative touch but also ensures you can easily mark your place in books or journals and continue where you left off. Easy Customization: Personalize these bookmarks effortlessly with your own designs, logos, or messages using sublimation printing. For optimal results, transfer your designs at 340°F for 50 seconds, adjusting the time and temperature as needed for different colors. Ideal Size for Gifts and More: Measuring approximately 12 x 3.2 cm (4.7 x 1.2 inches), these bookmarks have smooth edges and are perfectly sized for use in a variety of books and notebooks. They make excellent gifts for friends, family, teachers, and book lovers. Colour:As Shown Material:aluminum metal Package Contents: 50 * Bookmark 50 * tassel(The tassel color is random, no specified color is accepted) 50 * Storage Bags Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.