SCIENCE KIT FOR KIDS - The kit allows your young scientist to explore learn and have great fun with their very own science kit. Helping children learn simple and easy-to-understand scientific knowledge in the process of playing. SUPPORTS STEM EDUCATION - Designed to enhance your children's Science Technology Engineering and Math skills. The products are all in the form of parts. Kids can assembling a science toy by themselves exercise their own hands thinking exploring creating ability. Helping to improve childrens ability to use hands and mind. Manufacturered by Yamix. GIFT CHOICE - The intelligence toys are helpful for kids to development of intelligence if parents could join in the games with kid that will be sweet memories for kids' childhood. Product Contains small parts suitable for 8 years old and up. PRINCIPLE - In a double-stranded DNA molecule A=T G=C. That is: A + G = T + C or A + C = T + G.