This is a case for the Samsung Galaxy Chat b5330 that protects your phone and keeps it in good condition. It comes in different material versions, including elastic (Flex) and rigid (Rigid) versions. The rigid version is made to fit harder materials such as PLA, ABS, HIPS, etc. The elastic version is designed to fit more flexible materials like TPU. There is also a grooved version (Banded) that offers a more regular texture for a better grip. Choose the model that best suits your needs.