Adult head circumference 56-58cm, children head circumference 52cm

all specifications are white jaw strap

if you need other sizes or colors, please contact customer service to customize them.

Tips: manual measurement of size, there will be some errors, please consider carefully before ordering!

  Straw may have slight flaws, please consider carefully before ordering

(We have selected large goods, but there are also customer requirements that are very fine, straw material characteristics are so, please understand. Straw large gap, small gap, etc. are not quality problems, straw touch is not smooth is not quality problems.)