These are all good hard steel dolys.There are 2 straight ones about 11 inches long one is 1 inch diameter and the other is 1 3/8 diameter.There is one curved and is 1 inch diameter and 11 inches long.The round tube in the photo is 2 7/8 inner diameter and is for dish shapes or bumps.I used it for head light stands and depressions.The long piece in back of photo is for bar or flat stock up to 1/8 inch thick you want to curve.These have all been useful over the years,i dont do anything any more and no longer have a need for them.Pay pal only please,if you cant complete an auction DONT BID.