I love handmade items! I'm Yocchin (*^.^*) I made a micro 5-size system notebook cover using wine-red (small grain) cowhide leather. From cutting to punching holes, the sewing is done by hand with waxed thread. ☆Color☆ Wine Red (small grain) *Please note that there may be slight differences between the colors in the photos and the actual colors m(_ _)m Material...Cowhide leather ☆Size☆ Height: 13cm Width: 9cm Width (open): Approximately 19cm ☆ The leather is about 1.2mm thick and has some firmness. Ring Size (Silver) : Total length 120mm : Back width 15mm : Ring inner diameter 15mm A core material is inserted between the leather and the metal fittings. The metal fittings are screwed in, so if they loosen, you can tighten them slightly with a flathead screwdriver. *Please be careful not to overtighten. If you like what you see in the photos, please consider purchasing it m(_ _)m