This windproof sponge foam is compatible with hero 5 session/ hero 4 session. Reduces wind noise for enhanced audio recording during high-speed activities or in windy environments. The flexible foam material of the windscreen wraps around the camera for a secure fit and stretches on and off for easy removal. Perfect for high-speed activities or windy environments. To keep the lens of your camera dust and fingerprint free. Size: 5 x 5 x 2 cm Due to the slim fit of the foam windscreen, the LCD or battery extension cannot be used. Color: Black Material: sponge Package including: 4 * Windproof Sponge Foam Cover for Hero 5 4 Session Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.