Show off your middle sister status with this bold black T-shirt! The design features the phrase 'I'm the Middle Sister' in a striking pink font, underlined by 'I'm the Reason We Have Rules'. Perfect for casual wear, family gatherings, or as a fun gift for the middle sister in your life. The design is eye-catching and sassy, sure to be a conversation starter wherever you go. Made of soft fabric, this shirt is comfortable and built to last. Grab yours today!