• Ample Quantity: there are 14 pcs of metal puzzles brain teasers, including 10 pcs metal puzzles for adults and 4 pcs wooden brain teaser puzzles, with easy to hard levels, allowing to challenge yourself; Sufficient quantity and diverse styles can meet your playing needs
• Safe Material: the mind brain IQ logic puzzle for kids are made of quality wood and stainless steel, safe and reliable, with smooth and rounded corners, which are not easy to break or bend; They can be applied for a long time; And the player is hard to force them to open, so there's no chance to cheat
• Intelligence Brain Teaser Games: the brain teaser for adults can be applied to spend your spare time, and also can be applied as a healthier way to practice concentration, as well as a funny party game
• Easy to Carry: the party favor metal puzzles for adults are small and compact, which can be easily carried in your pockets, and also can be applied as essentials for travel through your leisure time, providing you with endless fun
• Nice Gifts: these 3D metal puzzle brain teasers are suitable as gifts to give to your family member, friend, classmate, colleague, etc., on Christmas, birthday, holiday, and other special occasions, as well as game prizes, classroom rewards, and so on