First Birthday Cake Topper, Baby Girl's First Birthday Smash Cake Banner, Pink and Blue One by Piece of Cake Parties Your baby is turning one and you just have to adorn the top of the smash cake with this adorable banner. The banner measure 8" tall and 6"wide once assembled on cake Banner is constructed of 110 lb cardstock. The straws are biodegradable and printed with food safe ink.