About This

• 4 Pcs advanced metal brain teasers give you more challenge interesting then primary.
• The best office desk toys for stimulating inspiration,relieve stress, also good for parents-children games,party games, killing time,etc.
• This brain puzzles are interested for people from age 6 to 80,it's a nice gift for your kids friend family colleague.
• Made of high quality steel with electroplate surface,durable and smooth edges avoid hand injuries.
• A paper instruction included with very detailed ways,but please don't reference to it at the very beginning,explore it,and enjoy it.