Feature 1HANDHELD BLOCKS: Disassembled design, consisting of 8 small blocks with different holes, which trains the brain and relieves stress by assembling imitation. 2APPLICABLE PEOPLE: Ergonomic design, stress relief toy ideal for ADD and ADHD patients to relieve stress. Suitable for office workers, student, etc. 3ANXIETY STRESS RELIEF: Fingertip toy is a great toy for improving irritability, anxiety, low concentration, ADHD and ADD, quitting nail biting and other bad habits. 4PORTABLE DESIGN: Compact and light, easy to carry, suitable for travel, office work, etc. Perfect gift for relatives, friends, loved one, etc. on Christmas, New Years, birthdays, etc. 5ALLOY MATERIAL: Made of excellent alloy metal, the surface is sandblasted, eco friendly, firm and sturdy, not easy to deform, stable and wear resistant, durable.SpecificationItem Type: Sensory Handheld Blocks Material: AlloySize: Approx. 80 x 40 x 20mm / 3.1 x 1.6 x 0.8in .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Flip Block1 x Screwdriver1 x Instruction Manual