How do I change values of a Object whos name has spaces?

I'm making a player's limbs disappear so I'm editing transparency. Because all the limbs have spaces in them in the name in properties, I can edit them.

Example: It keeps doing this - ["Right Arm"] script.Parent.Mannequin.Opponent["Right Arm"].Transparency = 1

In a Local Script:

local plr = game:GetService("Players").LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait() 
 --you may want to wait some before looping to allow parts to load
for _,v in pairs(char:GetChildren()) do
   if v.Name:match("%s") and v:IsA("BasePart") then --the string pattern for whitespace
      v.Transparency = 1
   end
end

String Patterns