If you are looking for something to protect your diving mask, then you have just found the right one. The transparent box is used to edge the swimming and diving masks. Protects the mask from water, sand, dirt, abrasion and other mechanical damage. The mask box measures 21.5 x 11 x 11 cm and is plastic. You can easily pack the box and you can go on trips with the knowledge that your snorkeling mask is maximally protected.