Python dictionary in VBA

[Einsener37]

On thing happened!
When I added some more rebars to Dictionary, it gave me error, because there is already with same key word element
For ex.

 ' 1 rebars
    rebars.Add 0.28, "1x6"
    rebars.Add 0.5, "1x8"
    rebars.Add 0.79, "1x10"
    rebars.Add 1.13, "1x12"
    rebars.Add 1.54, "1x14"
    rebars.Add 2.01, "1x16"
    rebars.Add 2.54, "1x18"
    rebars.Add 3.14, "1x20"
    rebars.Add 3.8, "1x22"
    rebars.Add 4.91, "1x25"
    rebars.Add 6.16, "1x28"
    rebars.Add 8.04, "1x32"
    rebars.Add 10.18, "1x36"
    rebars.Add 12.57, "1x40"
    
    ' 4 rebars
    rebars.Add 1.13, "4x6"
    rebars.Add 2.01, "4x8"
    rebars.Add 3.14, "4x10"
    rebars.Add 4.52, "4x12"
    rebars.Add 6.16, "4x14"
    rebars.Add 8.04, "4x16"
    rebars.Add 10.18, "4x18"
    rebars.Add 12.57, "4x20"
    rebars.Add 15.21, "4x22"
    rebars.Add 19.63, "4x25"
    rebars.Add 24.63, "4x28"
    rebars.Add 32.17, "4x32"
    rebars.Add 40.72, "4x36"
    rebars.Add 50.27, "4x40"

How could i fix it in VBA? Perhaps i have to use extra dictionary, ex. rebars2?