They are at the bottom of the legs. I bought 3/4” pipe from Tucson’s steel supply company. That’s 3/4” inside diameter, and the plugs are a little small, I’ll have to apply an adhesive silicone in order for them to remain secure. The one inch pipe (inner diameter) for the cross section does not fit the bracket, but the 3/4” pipe (one inch outside diameter)does. So, the one inch plugs don’t fit the type of pipe I’m using. I rated them a five star, because I love the company .

Fit perfectly & give a professional look to the 1” conduit