Features 1 Main features stylish design light weight sterile environmentally friendly Silica gel flexible material can be self sterilized easy to clean unlimited reuse non allergic fit to your head comfort wraparound Design adjustable belt tasteless long service life etc 2 Extensive compatibility Our replacement helmets are compatible with various masks or face shields of the two point connection type 3 Washable & durable The headband made from durable Silica gel flexible material which can be repeatedly washed without bending abrasion curling peeling or other types of degradation 4 Functional design The product hook adopts a semi circular arc design which is convenient to wear around the arc design It can form a smooth inner surface & unlikely to cause irritation or abrasion to the skin Package Included 1 X Adjustable Ear hook Notice 1 The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor & light brightness 2 Please allow slight deviation for the measurement data