Artcare premier portfolios are made for the professional artist or designer, with heavy duty ring mechanisms manufactured to Artcares specification. A steel plate in the spine between handle and mechanism gives immense strength, vertically suspended sleeves (not included) ensure artwork always stays flat. The Artcare premier portfolios also feature a clear window on spine for name cards, practical internal pockets which provide extra storage space, Shoulder strap rings (strap not included), brass corner protectors and handle clasps. The Maxi portfolio has a 70mm gusset so has a far greater capacity than the standard presentation folios. The folio is also fitted with large headed steel rivets for added strength.