The patented design distributes between .75 and 1 lb. of weighted pressure to key pressure points on the face – on areas surrounding the eyes tied to relaxation. Mask is made with micro-plush and luxurious imitation cashmere. The weighted insert is filled with fine-grade glass beads. An adjustable velcro strap (23-28 in.) guarantees that any sleeper can benefit from the mask. Hand wash in warm water recommended, as it is not intended to be machine-washed. Once washed, leave out to air dry.