Features:1. Portable toys: portable size, you can hold it in your hand, and carry it with you to any place where you need to relieve stress. It is suitable for offices, churches, libraries, stations, special education classes, physiotherapy or educational purposes.2. Suitable for different people: Suitable for different people such as inattention, autism, etc. It can improve and help daily stress and irritability, and improve concentration.3. High-quality materials: using food-grade high-quality plastic materials, non-toxic and environmentally friendly materials, no BPA, safe to play.4. Pressure bag: to help release pressure, roll on fingertips, inner ring is equipped with twisted colorful ball slides, it is also a piggy bank, you can deposit coins in it, this is also useful for children, children's brain stimulation toys & good Educational toy play kit.5. best choice for children or adults: Suitable for children and adults as birthday gifts, Christmas gifts, stress relief toys or table game.Description:It is not only a piggy bank, but also a wonderful rolling ball secret recipe; it can not only cultivate children's awareness of saving money from an early age, but also improve children's spatial imagination, practical ability, color recognition ability, observation ability, thinking and logic ability. A great gift for children.Specifications:Material: ABS environmental protection materialSize: 7.5*7.5*7.5 CMPackage Included:1 * Piggy BankNotes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, ite