Run it
Copy the script and paste it into your executor.
local part = script.Parent
local RunService = game:GetService("RunService")
-- Only works for unanchored parts
if part.Anchored then
warn("Part is anchored! Unanchor it to grow properly.")
return
end
-- Settings
local growthRate = Vector3.new(1, 1, 1) -- how much it grows per second
RunService.Heartbeat:Connect(function(deltaTime)
part.Size = part.Size + (growthRate * deltaTime)
end)Grows a dynamic object

Universal