三みつ折おり

noun which may take the genitive case particle 'no', noun

threefold; folded in three

Describes something folded into three parts, such as a letter, brochure, or mattress. Often used as a noun or with の to modify another noun.

• 三みつ折おりのパンフレットを作さく成せいした。

  We created a tri-fold brochure.