Features: 【Multi-Function Book marker Ruler】Combines book marker and ruler functions for convenient marking and measurement. 【Durable PP】Crafted from highly quality component for excellent flexibility and abrasion resistance. 【Lightweight Portable Design】Each piece weighs just a few grams, easily slipping into notebooks or folders. 【Precise Scale Markings】Clear graduations ensuring accurate measurements. 【Creative Combinations】A set of ten pieces allows for freely mixing and matching different colours and patterns. Specifications: Component: PP plastic,Good durability and flexibility. Process: precise molding molds Size ：3 Option Quantity: 10pcs Package Includes: 10PCS Notebook ruler note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.