Keep Facial Muscles Relaxed: Observer's Eyepatch keeps facial muscles relaxed while observing through a telescope for comfortable, squint-free viewing. With Elastic Headband: Elastic headband and cone-shaped, cloth-edged cup allow viewing with both eyes open. Relaxing View: You'll want to spend more time at the eyepiece, thanks to the relaxing view. Not recommended for use with binoculars (we couldn't resist!). Can Be Used as Halloween Costume: Can also be used as part of a last-minute Halloween pirate costume! Flents Eye Patch - Eye Patch - This eye patch is made of a soft fabric and has a comfortable fit. With an adjustable fit, one size fits all. The main features of the Eye Patch include: Soft Comfortable Fit -Eye patch is made of a soft fabric that has a comfortable fit, Adjustable Strap Adjustable rubber band is easily adjusted so that one size fits most, Complete Coverage - Eye patch is designed for complete coverage. About Flents: Flents has developed a line of innovative personal care products. Popular products include Insty Splint finger splints, sleep masks, hot/cold water bottles, ice bags and eye patches. Flents products offer simple solutions for at-home health and wellness needs. Flents Eye Patch Regular One Size Fits All is made of soft, smooth material. It is shaped for comfort and protection, minimizes pressure and holds patch securely. It is elastic headband. One size fit all.