Made from cedar wood approximately 10mm thick. This is item Ⓓ in photos 6 and 7. It has a 4cm slit only. You can check if packages for Yu-Packet Post can be shipped just by passing them through the slit. I created this to offer it at a low price, hoping that as many people as possible can use it. The frame material is made thinner. There are no issues with accuracy or strength. It's lighter and I feel it's actually easier to use. Thanks to nearly 1,000 purchases, I can now create better products at a lower price. I also have other items for sale that are made more robustly. If you desire a more durable product, please purchase that one. The photos are for showing size and shape. The item you receive will be of equivalent quality. This is an item I created out of necessity as a Mercari user myself, thinking "this would be nice to have." I am confident you will be satisfied with this product. Wood is flexible, strong, polishes with use, and is kind to nature. Above all, the texture of wood is superb. I often receive comments expressing surprise at its durability and pleasant feel. I have been using it myself for many years. I will use recycled materials for packaging. If you purchase multiple items and they can be shipped together, I will offer a discount equivalent to the shipping cost. Please understand that I may change between Yu-Yu Mercari便 and Raku-Raku Mercari便 without prior notice. #Takatowoodhandmade #Takatowoodpackagingscale #YuPacketPost4cm #YuPacketPost #ThicknessMeasuringRuler #ThicknessMeasuringGauge #ThicknessMeasuringItem #ThicknessMeasuringGoods Yu-Packet Post Thickness Measuring Gauge 4cm Thickness Measurement Ruler Scale Yu-Packet Plus Measuring Ruler Mercari Shipping Mercari Scale Shipping Ruler Thickness Measuring Ruler Thickness Measuring Item Thickness Measuring Goods Thickness Measurement Scale