Its $40 and as good as anything else I could find for 50% more.  More importantly, its designed to work with the RX-100 M6 and M7, and has a very good wooden grip.  I got rid of my last cage which was designed for the M6 and switched to this one.

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Comparison of other Camera Cages for the M6 and M7

Photo

Title

RX100 VI VII Vlog Cage with Wooden Handle Grip for Sony RX100 VI VII (M6/M7) Vlogging Accessories

RX100M6 Camera Cage for Sony DSC-RX100 VI(M6) DSLR Camera Case Camera Rig Cold Shoe (RX100M6 Camera Cage)

Rating

Prime Status

Price

$48.95

$29.99

Buy Now

Photo

Title

RX100 VI VII Vlog Cage with Wooden Handle Grip for Sony RX100 VI VII (M6/M7) Vlogging Accessories

Rating

Prime Status

Price

$48.95

Buy Now

Photo

Title

RX100M6 Camera Cage for Sony DSC-RX100 VI(M6) DSLR Camera Case Camera Rig Cold Shoe (RX100M6 Camera Cage)

Rating

Prime Status

Price

$29.99

Buy Now