Flex: the general use of hardness 0 ~ 15A even softer (less than 0A) materials; processing: injection molding machines usually rapid prototyping, color is good, and processes for special treatment, such as fuel injection and other available; Environmental aspects: toy industry must comply with the relevant testing standards, such as EN71, ASTM-F963, REACH (SVHC) and the European Union recently released ROHS2.0 amending Directive (EU) 2015/863 and the like. Considering the above aspects, the soft PVC is difficult to fully comply with the above requirements. Such super-soft vent toys, the current use of soft TPE rubber as a raw material. Soft TPE hardness can be 0 ~ 15A, also provide ultra softness 0A less of these super soft TPE can still use the injection molding machine. But many vent decompression toys need to be painted surface injection treatment to achieve realistic visual effects. But the current market a lot of soft TPE, users respond well to injection (injection easy to fall). Super soft TPE, with good fuel injection characteristics, it can be dedicated to the super soft TPE vent toys.