The Kirk PZ-156 Camera Plate for Nikon D7100 with MB-D15 is designed and contoured for perfect no-play fit and no-twist. It is machined from lightweight strong duralumin and it is hard anodized to a virtually uncatchable black finish. This camera plate is for quick and secure mounting of your camera to your tripod head. There is not so much risk of vibration or slipping. It is an Arca Swiss style dove tail plate.