SwiftDry Coastline T Bar Clothesline (1200mm wide, 40m) Surface Mounted

The SwiftDry Coast Line Clothesline Surface Mounted is the same product with the same features and benefits as the SwiftDry CoastLine Clothesline but it is a 'surface mounted' version meaning the poles have plates that you bolt down to existing concrete pad.

Which SwiftDry T Bar clothesline model should I choose?