Sea Team New Arrival Brain Teaser Metal Wire IQ Puzzle for Adult Children and Student - Set of 7 EXCELLENT VALUE METAL PUZZLE SET - 7 different styles metal brain teasers. Having 7 pieces spreads the difficulty throughout the kit providing a good amount of fun and challenge! CLASSIC EDUCATIONAL TOYS - It is such a great classic game that never gets old! Teasers rank from fairly simple to difficult. An amazing intelligence game to develop thinking and manipulative ability. Designed for children, teens, students and adults (Small parts. Not for children under 6 yrs). REDEFINE YOUR PASTIMES - Try this new strategy game in your spare time to save your eyes from harm of electronic product's display. Linked together these wire pieces and do come apart with the right strategy. Patience is a virtue. PREMIUM & ECO-FRIENDLY MATERIAL - The metal teasers are made of 70# HCS (High-Carbon Steel) to provide high strength and toughness properties; LEAD-FREE. Smooth edges avoid hand injuries and nickel plating finish is stainless. They will be bright as new after a long time use. INSTRUCTIONS INCLUDED - Instructions are included to explain the solution for each one.