These kits will include:
1 - 2x4 base with screw together conduit legs
A 1x2 add on pocket to be able to use the base for paper targets as well
A standard 2x4 Post Top for slotted gongs
A 12" and a 8" plate so you have 2 sizes to practice with
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Not included, but needed for set up:

2x4 for post