Cover for 90° bends, with captive pre-assembled rotary latch locks, height-independent cover for cable trays 90° bends and for covering a 90° bend made using a corner attachment piece REK .... Due to external influences, such as wind loads, use outdoors is only possible with additional security (self-tapping screws, steel band, etc.). Rotary latches RDRS 2 can be used for additional requirements.certified! for cable trays bend 90°: RES ... Dimensions (approx. dimension) B (inside): 124 mm Material: Steel, strip galvanized according to DIN EN 10346