Our White Pizza Slice Clamshell is a triangular, single-use, clamshell food container that holds one 9 in. pizza slice. The improved side lock design keeps the clamshell securely closed, to help prevent spills. To create the lock, simply fold the lock tab on the perforated lines, then close the lid so that the folded tab clicks into the slot! You can also have this clamshell customized with your logo, contact us to learn more!