Knee Replacement Card, Knee Replacement Surgery, Knee Surgery Gift, Knee Replacement Gift, Funny Surgery Gift, Recovery Knee, Get Well Knee, Surgery Recovery, Get Well Card, Replacement Surgery, Replacement Gift Knee replacement surgery isn't fun but laughter is fantastic medicine :) Make your loved one giggle & let them know they have a pass on any & all life obligations! Cards are laser engraved on aluminum metal, measuring 3.4 inches in length and 2.1 inches wide. They're approximately the size & thickness of a credit card and perfect for carrying in a wallet (to bring a smile and have ready to play as needed).