top cross bar member 100 u2033 and is secured to tensioning member 206 in this manner hour glassing of the opposing sides of net shield 100 is prevented fig1 more clearly depicts the cable portion 210 which extends through the top third group of eyelets and cable portion 226 which skips the top third group of eyelets fig1 depicts pin 230 a extending through grommet 232 a through cable retainer 236 a and into bottom strut 46 b u2032 and secured therein via quick release pin 234 a extending through hole 238 a fig1 17 in pin shaft 230 a fig1 shows top cross bar member 100 tensioning mechanism 206 with spring s 225 and fig1 more clearly shows cable redirecting member 207 typically in the form of a pin secured within top cross bar member 100 u2033 fig1 also shows tensioning mechanism 206 spring s 225 and slider 226 the cable as shown at fig9 is secured to slider 206 as shown in fig1 fig1 more clearly shows cable redirecting pin 207 fig1 depicts an example with simpler top cross bar 300 folding spaced top struts 302 a and 302 b interconnecting top cross bar 300 with tray structure 308 itself securable to a vehicle or structure fabric bottom 303 is also shown as are folding bottom struts 304 a and 304 b member 310 in this example between the vehicle or structure and the net is configured to tension cable sides 312 a and 312 b apart to prevent hour glassing member 310 may.