Brand new and high quality. Come with 8 sets different puzzle rings with different level of difficulty. Metal brain teaser condenses with traditional Chinese culture and they are quite interesting. Good for creative thinking and improve both your IQ and EQ. You soive the problem by yourself, then you will get achievement, but we still attach a diagram to satisfied with some people. You will not joy and stimulate within you read the secret. We hope you have ability to solve the secret. Material:Metal Color:As the picture shows Size:18cm * 13cm * 2.2cm/7.08" * 5.12" * 0.86" Note: *Manual measurement,please allow 1cm error. *The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Package include: 8 Pcs IQ Brain Teaser Toy The customer is god,You are our god!