DescriptionThis unlocking toy challenges players critical thinking andproblem-solving while helping improve their intelligence. Test logic and creativewith this cool yet simple brainteaser. This brain game is perfectfor passing time, fidgeting, and avoiding gadgets and electronics.Features-Color:Silver -Material:Metal -Size:7.00X5.30X1.50cm/2.75X2.08X0.59in - It is made of high-grade materials and can be used for a long time. Feel free to take it as a challenging brain mind game.- Selected high-class metal material, strong toughness and durable. Mind play toys are smooth and do not bend or break easily.- Definitely a fun intellectual training plaything that would be perfect for a gift to friends.- Intelligence game toy, both perfect for children as toy, family games for adults.- If you're looking for a brain toy to entertain briefly, then you'll probably enjoy this.