Used set of GM rocker bolts.  Factory bolts.  These will fit all LS engines 1997-2013 EXCEPT LS7.  Works on intake or exhaust rocker, factory rockers only.  Set of 16, as shown.  Fits the following.

98-02 LS1 Camaro
98-02 LS1 Firebird/Trans Am
97-07 LS1/LS6/LS2 Corvette
08-13 LS3 Corvette
10-13 LS3/L99 Camaro
04-07 LS6/LS2 CTS-V
04-06 LS1/LS2 GTO
99-06 4.8L/5.3L/6.0L Trucks

The item in the photo is the exact item being sold.