Thickness Measurement Ruler ☆ Immediate purchase OK! ☆ This scale/ruler is essential for shipping on online flea markets like Mercari! ☆ Measurement Sizes: You can measure thicknesses of approximately 1cm, 2.5cm, and 3cm in three stages! It has markings, so it can also be used as a regular ruler/stationery item! 【1cm】Standard Mail 【2.5cm】Nekoposu (Rakuraku Mercari Delivery) 【3cm】 ・ Letter Pack Light ・ Click Post ・ Yu-packet (Yu-Yu Mercari Delivery) ☆ Material: MDF, Size: 280 x 115 x 2.5mm (MDF is a general term for products made from wood as a raw material, which is then fiberized and molded.) ☆ This product is a ready-made product, not handmade.