The two negative blocks can simply be removed for an even more secure stand without a tripod. For a good fit and robust Arca Swiss clamping, the model should be printed on the closed ring. At least PETG should be used as the MM can become slightly warmer than 60°C. To mount, simply unscrew the battery cover and mount the holder. There should be enough play so that the holder can be turned away a little to make it easier to mount.