Self-deception Ruler, Fake 30cm Ruler, For Your BIG Brother

Do you have a friend who always boasts about how big his package is? Give him this ruler to measure it!
Note: For printing convenience, the scale is not in true proportion.

你是否有位朋友總是誇耀自己褲檔裡的傢伙有多大多大, 送他這把尺量量看吧!
注意: 為了方便打印, 刻度非真實比例