Customized version of http://www.thingiverse.com/thing:102974

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=102974

Using the following options:

hook_and_front_thickness = 4
first_hook_offset = 65
hook_radius = 15
hook_distance = 60
number_of_hooks = 1
top_and_back_thickness = 4
inner_hook_buttress = 0
clip_length = 20
width = 10
clip_depth = 16.5
clip_angle = 1
hook_style = simple