Applicable age: More than 6 years oldThe name of the: Nine serial educational toysmaterial: Iron nickel platingBox specifications: 22.2cm 9.5cm 3.0cmprocess: Two layers of platingThe weight of the: 0.25KGgender: Boys and girls of generalbrand: 9 a serial of educational toysThe traditional educational toys Practice the brain and eyes For young and old.Gossip metaphysics invented the principle of a kind of toy， structure looks be like simple， actually infinite secret of them， not to the purpose， it is difficult to complete the split， is a kind of leisure and educational toys for young and old， and mouth are ruban lock...Play to improve the beginning ability， promote the brain development， adults play eliminate fatigue relieve work pressure， the old man years of age to play dementia， killing the time.