Composed of nuts and bolts, these pencil toppers can be installed on the pencil to complete jumping, sliding, pulling or rotating actions. Perfect for those who are unable to stay still or concentrate when working.Ideal supplies for boys and girls to play in leisure time, these pencil toppers can improve kids' attention and concentration at home, in class or in a variety of other occasions, enabling them to concentrate when they cannot remain still or do work, stimulating, strengthening and promoting independence. It is constructed of ABS material.The length of this product is 4.2cm and width is 4.2cm. A sufficient number can easily meet your daily use as a gift for boys and girls. Suitable for office, home, station, travel, etc., Making every moment more fun It will bring you endless fun and let the anxiety go away. Item Name: Fidget Pencil TopperMaterial: ABSUsage: Relieve Boredom, Pencil TopperFeatures: Portable, Material Safety, ColorfulSize Details:L: 4.2cm/1.65", W: 4.2cm/1.65"(Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:4 x Fidget Pencil Toppers