I purchased this item in the past and have kept it in storage without ever using it. It is a traditional craft from Yamanashi Prefecture. The base leather of the patterned areas is natural deerskin (genuine leather). The patterns are applied with lacquer. Specifications: Product Name: Pen Case A Size: Approximately 4cm x 18cm x 3.5cm Weight: Approximately 35g Features: This pen case has a gusset and can hold about 8-10 standard pens. Notes: The lacquer used in Inden (印伝) products has a subdued color when new, but it will become more vibrant with use. [Black Lacquer] Glossy black → Increased gloss