Sun hat

打前必读：一个简单打印的遮阳帽，你需要测量一下自己的头围，配置中是一个头围为56cm的模型，请根据你自己的头围缩放相应的比例后进行打印。Must read before playing: A simple printed sunhat, you need to measure your head circumference, the configuration is a model with a head circumference of 56cm, please scale the corresponding proportion according to your own head circumference and print.