You can easily become dehydrated in the heat. Wonderful Mask for Party: You can put on our Scary Demon Slayer masks to attract all the attention at the party, find a group of friends to put them on and start a sport, which will surely make your activities more surprising. Designed with your convenience in mind, the straps offer adjustability for hands of all sizes so you can hold it on your hand or strap it onto a shoulder or even on the end of a staff.