Inspired by dandelion puff ball, the spherical seed head structure is masterfully converted into the geometric design comprising of six identical parts and one central axis, forming a ball. In addition to erasing writing errors, HMM Eraser Ball also has diverse functions. The gaps can be used as business card holder. Each individual part can be used as a pen holder. The round edge of the individual parts allows precise erasing, and the material is also eco-friendly and contains no plasticizer or PVC, making it safer and healthier to meet the values of environmental protection and sustainability.