Swiffer Duster Handle Extension

The three foot handle on my duster was not long enough to reach the high ceilings in my house, so I designed these extension pieces. I'm using two, each of which adds 265 mm (10.4 inches). They seem sturdy, so I think you could use 3-4 without problems. I printed them diagonally on my X1C, but I believe they will also fit on a Prusa MK3S or MK4. 

I print this laying down for strength, with the latching tab down and with support under the narrower section (be careful to block the support from going through into the inside of the tube). 

NOTE: My first attempt only had two perimeter walls and 20% infill and broke when my daughter was using it, so I increased it to six perimeter walls and 40% rectilinear infill for more strength (see Duster Extension v2.5 Stronger.3mf).

I printed with yellow PLA, but I suspect other materials would work fine. I'm tempted to try ASA.