The latch portions are resilient so that {HEAD ~ the engagement portions} are allowed to override {TAIL ~ the resilient latch portions}, thereby the holder arm is released to be free when excessive force is applied to the holder arm 
are allowed to override
The latch portions are resilient so that { HEAD ~ the engagement portions } are allowed to override { TAIL ~ the resilient latch portions } , thereby the holder arm is released to be free when excessive force is applied to the holder arm
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH