The K-Edge co-polymer insert for Garmin 1/4 Turn style computers is a replaceable item.
While it is extremely strong, they designed this insert to fail on a significant impact before the tabs on the back of the Garmin break.
Features
Qty 1 - K-EDGE Co-polymer Insert for Garmin Computer
Qty 2 - M3 x 0.5mm x 6mm with Pre-Applied Nylon 180,18-8 S.S. Screws
Specifications
Weight: 10 g
Dimensions: 13 x 18 x 4 cm