Thank your favorite people on your 100th birthday party with specially customized 13 oz. rocks glasses as party favors. Add an extra-special touch to these glasses by using our customization option to include a brief message in any color you like. Invite your loved ones to sip and savor in your honor on your milestone birthday with these personalized rocks glasses and they will always cherish the happy memories of this special day. Rocks glasses measure 4" tall x 3 1/4" wide.