You math guys trip me out. I'm with MauganH17. Its round and black and it lets the boat roll over the hard ground to get to the soft water. Yea for water.,.,.,I think I would die if there was no water....La De Da .,., Look At the PreTTy CloudS..OOHHH Look at that one,, It looKs LIke a BoaT.,.,

PrindleFish }=)))*>