This is a car building sets from Mould King speed champoine series, inspired by MacLaren P1 Sper Cars. All Mould King products are made from Environmental Frendly mateirals, also this kind of high quality ABS plastic is safe and harmless for health which is an amazing choice for kids 8+ years old and adults or teenagers as gift. The high quality ABS material also provides the solid and durable building experince for each car building blocks. More over, for provides customer more happy and fun, the building blocks pieces designed with the size that suitable for normal lego bricks, compitable with lego cars of lego speed champions, also can combined with other lego sets from lego technic.