2-piece set. Window front - NO Window back.
  

Comes with an acid-free, resealable crystal clear sleeve as well as enough paper tape to hinge the front window matboard to the back matboard on the long side and for print attachment.

Material Specs:
Matboard - Crescent® Berkshire, buffered pH neutral board. pH is 7.0-8.0. The board is 55-60 pt. with a white back and cream core. Windows are beveled cut at a 45° angle and are centered for vertical or horizontal display. Back matboard for all sizes is white.
Hinging Tape - Acid-free, lignin-free, buffered, pressure sensitive paper tape is 1" wide.
Sleeve - 1.5 mil acid-free, resealable polypropylene sleeve with reseal tape on the body of the sleeve.

Mix 'n' match colors for quantity discounts. Minimum 5 of the same size, window, and color. Discounted prices will be reflected on the final invoice sent with your order.