Tool that makes specific parts invisible?

I tried to do a tool that makes Parts that are in the Player's Character invisible. But when i equip it it doesn't do anything, and there's no error

Invisiblade = script.Parent
Invisiblade.Equipped:connect(function() 
Player = script.Parent.Parent
local children = Player:GetChildren()
    for i = 1, #children do
        local child = children[i]

        if child:IsA("Part") then 
            child.Transparency = 0.5 wait(0.1) Transparency = 1
            end

    end
end)