Features: Experience stress relief with our Jacks Game Set, featured metal jacks and elastic balls for a varioous play experience. Use selected zinc alloy, the Jacks game set is practical and easy to clean, while the elastic balls offer a soft and bouncy texture. Perfect for adult, students, and office workers searching relaxation and stress relief during their busy day. Great for office, home, or travel, this set is design to help you enhancing your attention wherever you are. Elevating your relaxation with this stress relief toy set, combining durability and comfortable to support mental well being and concentration. Specifications: Product Dimension: Approx. Bouncy ball size 2.7cm/1.06inch, Jacks size 2cm/0.79inch Component: Alloy Type Option: 01/02/03 ( the bouncy ball’s color delivery randomly) Package Includes: Type 01: 5PCS Gold Jacks, 5PCS Silver Jacks, 2PCS Bouncy Balls Type 02: 5PCS Gold Jacks, 1PC Bouncy Balls Type 03: 5PCS Silver Jacks, 1PC Bouncy Balls note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.