This black cigarette case does not look like a scale at all, so no questions about the how and why.
Besides, may assist in accurately rolling your own cigarettes or help reduce your tobacco use through 'the measuring tobacco method.' This full-featured scale has everything you need to roll the perfect cigarette. It has five weighing modes, 300g x 0.1g accuracy, stainless steel weighing tray, hold and tare buttons, and an on/off button. It has all the benefits of a modern digital scale with a subtle, vintage appearance.

• Reads to 0.1g / 0.005oz / 0.005ozt / 0.1dwt / 0.5ct .
• Runs on standard AAA batteries (included).
• Stainless Steel weighing tray.
• Durable and very Portable.
• T 2.8" x 3.8 " or 7 x 10 x 2,5 cm
• Compact size for easy storage.
• BLUE backlight LCD Display.
• Reads in Grams, Ounces, Troy Ounces, Pennyweight & Carats .
• 1.75" x 2.25" (44mm x 57mm) weighing tray
• Rolling guidelines printed right inside top cover
• 1 minute auto-off
• Lifetime/30 year Worldwide Warranty
• 2.8"(W)" x 3.8"(L) x 0.75"(H) 145g
• Digital Auto Calibration