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 your Yu-Packet Post package can be shipped just by passing it through the slit. I created this to offer it at a low price so 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 the nearly 1,000 people who have purchased it, 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 item, please purchase that one. The photos are for size and shape reference. The item you receive will be of equivalent quality. This is an item I created out of necessity as a Mercari user myself, thinking "I wish I had something like this." I am confident you will be satisfied with this product. Nearly 1,000 people have enjoyed and appreciated it so far. Wood is flexible, strong, polishes with use, and is kind to nature. Above all, the texture of wood is superb. I have received many comments expressing surprise at how durable and pleasant to the touch the item is. I have been using it myself for many years. I will use recycled packaging materials. 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. #TakaWataruHandmade #TakaWataruPackingScale #YuPacketPost4cm #YuPacketPost #ThicknessMeasuringRuler #ThicknessGauge #ThicknessMeasuringItem #ThicknessMeasuringGoods Yu-Packet Post Thickness Gauge 4cm Thickness Measuring Ruler Scale Yu-Packet Plus Measuring Ruler Mercari Shipping Mercari Scale Shipping Ruler Thickness Measuring Ruler Thickness Measuring Item Thickness Measuring Goods Thickness Measuring Scale