This is a hand-stitched genuine leather notebook cover for a surveying notebook (Yacho) size. It can hold one Yacho notebook. It has a pen lock-style pen holder that prevents the cover from opening when a pen is inserted after closing. The pen lock section has been made wider to accommodate multi-function pens. Although a uniball one is shown in the photo, pens up to the thickness of a Jetstream 4&1 can be inserted. Black chrome leather from Nippi is used for the interior and exterior, and moss green polyester thread is used for the stitching. Because it is chrome-tanned leather, edge and flesh side finishing are omitted, making it more affordable. The surveying notebook and pen in the photo are not included. *This item is also listed on other sites. Please note that we may cancel your order if it sells out quickly on another site.