Combo Mask strap and hook

mask ear protectors, the two designs are made for different masks, ones with long loops work better with the hooks (disposable masks and medical masks) the homemade masks have shorter loops and stiffer elastic that work better with the strap style. These are designed to be fast printed, my 220x220 bed can fit 9 at a time. Using the volcano 0.8mm nozzle on an Anet A8 I can print a batch every 20 minutes.