Material: Wood, Metal Size: about 23cm / 8.97" Color: as shown  Description 1. Enhance Focus: Designed for people with Attention Deficit Hyperactivity Disorder (ADHD), our threaded pencil is a special sensory tool that looks like a regular pencil but has a sliding nut to help relieve anxiety and fidgeting 2. Enhances Productivity: The twistable action of threaded pencils for ADHD keeps hands engaged, helping to maintain momentum and stay on task. This threaded pencil fidget feature is perfect for those who need to keep their hands to boost productivity during assignments or exams 3. Teacher-Approved and Classroom Safe: Our stress-relief pen's thoughtful design, smooth edges to prevent injury to fingers, and pencil-like writing ability to prevent items from being confiscated in class. Educators report that students who use this effective stress-relief tool have improved their focus in class and on exams, turning irritability into productive energy  Package include: 1pc Threaded Pencil