New Traditions Simplify Your Holiday - Burlap Stand Band Christmas Tree Collar with Tiered Ruffles - Tan

how would you get the tree stand which is almost a rectangle; in the collare which is at the top 18 inche in the top of opening?

Can someone please let me know what the height of this tree collar is?

Will this fit around a 10ft artificial tree?

how does this stay up with just a top and bottom tube?