bumper flange 104 and fig6 details a bottom front isometric view of the same component while the following discussion relates to upper bumper flange 104 it will be understood that the same concepts and features are preferably applied to lower flange 104 although in an inverted manner referring to fig5 and 6 concurrently it can be seen that the preferred embodiment of bumper flange 104 includes an outer profile 120 a top face 122 and a bottom face 124 filleted or radiused transition portions 126 exist between both faces 122 and 124 and outer profile 120 additionally a flat faced feature 128 is located on profile 120 towards the back of bumper flange 104 between top 122 and bottom faces 124 a bore hole 130 extends through bumper flange 104 from top face 122 to bottom face 124 a countersink 132 is coaxial with bore 130 and extends from top face 122 partially through flange 104 extending from flat face 128 into the interior of bumper flange 104 is an attachment plate socket 134 that fits the cross section width of attachment plate 114 located in the bottom face 124 of bumper flange 104 is a radial ergonomic cutaway 136 that allows the operator more clearance for ease and range of motion when gripping handle assembly 100 bumper flanges 104 are preferably manufactured of a elastomeric compound with a durometer hardness less than 100 shore a more preferably of an elastomeric compound with a durometer hardness less than 70 shore a bumper flanges 104 are preferably manufactured of polyurethane but any.