Manufactured in the USA by Group Medical Supply LLC for GMS Optical, and precision made with food grade plastic, this eye wash cup is one of the best you'll find anywhere. Made to fit comfortably yet snugly over the eye, this eye wash cup is as smooth as, and better balanced than its glass counterpart. The contoured lip is specially made with no sharp edges and you'll be washing your eyes with the comfort of knowing that the cup will in no way harm your skin or eye.