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.

Amazon Link Here

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)

Flycoo2 Metal Vlog Extension Frame Housing Case for Sony RX100 VII Camera Cage with Cold Shoe 1/4 inch Thread Interface Microphone Light Mount Bracket Stabilizer

SMALLRIG RX100 Cage Kit Compatible with Sony RX100 VI (for Sony M6) Camera with Wooden Handle Handgrip – 2225

Rating

Prime Status

Price

$49.95

$29.99

$59.00

Buy Now

Buy on Amazon

Buy on Amazon

Buy on Amazon

Buy on Amazon

Photo

Title

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

Rating

Prime Status

Price

$49.95

Buy Now

Buy on Amazon

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

Buy on Amazon

Photo

Title

Flycoo2 Metal Vlog Extension Frame Housing Case for Sony RX100 VII Camera Cage with Cold Shoe 1/4 inch Thread Interface Microphone Light Mount Bracket Stabilizer

Rating

Prime Status

Price

Buy Now

Buy on Amazon

Photo

Title

SMALLRIG RX100 Cage Kit Compatible with Sony RX100 VI (for Sony M6) Camera with Wooden Handle Handgrip – 2225

Rating

Prime Status

Price

$59.00

Buy Now

Buy on Amazon