very unlikely the knob 124 will be depressed inadvertently as it lies below the level of the upturned ends 136 of the catch 42 as seen in fig3 also the main latches 34 and 36 do not have elements that pop up or pivot outwardly as they become unlatched avoiding the possibility of these elements being sheared off or otherwise damaged as the carrier is used as is well understood the main latch 34 or 36 can be moved from a latched position where the catch 42 tightly engages the cam 126 to hold the carrier 10 in the closed position to an unlatched position permitting the catch 42 to be disengaged from the cam 126 to allow the carrier 10 to be opened as can be seen the halves 12 and 14 can be mirror images of each other with one end of each half having a cam 126 and the other end mounting base 38 allowing a single mold to be used to make both halves preferably the first and second halves 12 and 14 base 38 catch 42 and safety latch 70 are molded and formed of polycarbonate abs nylon such a pa66 or pa6 nylon or any suitable engineered plastic alternatively the base 38 catch 42 and safety latch 70 can be formed of a flexible metal such as steel another advantage of the carrier 10 is the wear bands 80.