The new Go Big On-Center Mount by K-Edge, the next generation in industry leading GoPro style interface Light Mounts /Camera. The new mount provides easier installation with a stronger more secure platform for your Lumina Series Head Light or action camera. Fits 31.8″ diameter size bars. On-Center giving you a clean centered position for your Lumina Series light. And better framed image with the newer style cameras that have lenses centered on the camera, such as the GoPro Session and Garmin VIRB.