Open the Compact lid and then lift up the inside protective frame with your finger. You can also pop open the frame using the pin hole opening on the bottom of the Compact. Lay your MOB refill(s) into the compact and securely snap the protective frame back into place. To replace the refill pop open the protective frame via the pinole on the bottom of the compact or gently press the bottom of the refill to push the frame open. If filling with 2 eye refills ensure the thicker edges of the refill are facing out for proper fit.