S = 3-Piece Set M = 4-Piece Set. Ample Supplies: Each diamond color includes a 10% surplus to ensure you never run out of materials before completing your bookmarks. Clip-Style Bookmarks: Designed to securely grip book pages without slipping, these clips not only protect your books but also help you quickly navigate to important chapters. Beginner-Friendly: The numerical markings on the bookmarks are clear and distinct, corresponding precisely to the numbers on the diamond storage bags, making the crafting process effortless and simple. Creative Gift Idea: This Diy craft project offers a perfect blend of practicality and fun-ideal for book lovers to enjoy on their own, or to share as a thoughtful gift with family and friends. Weight: 0.37 lbs.