Design and contruction
Well, the pictures should tell a lot of the needed information. I will add that water-quenched clip-on wheel weights are the material used.
"My plea is that we stop seeking out the storm and enjoy more fully sunlight. I am suggesting that as we go through life we accentuate the positive. I am asking that we look a little deeper for the good, that we still our voices of insult and sarcasm, that we more generously compliment and endorse virtue and effort." Gordon B. Hinckley