Due to battery tolerance, some GR3s may have poor contact after using certain brands of batteries for a long time. Typical symptoms are: intermittent power failure and camera crash during use. The lens is stuck outside. For this reason, we designed a battery compartment pad that can significantly improve the power failure problem. This product uses high-quality materials that are soft and stable. The adhesive material uses high-quality 3M adhesive, which is firmly adhered and not easy to fall off. Product content: Battery compartment gasket * 4 Note: Please clean the surface before installation, then tear off the adhesive film, press the adhesive sticker with your fingers to ensure a firm installation.