This item meets Preservation Directorate specifications for a long-lasting and durable product, appropriate for protecting LC collections, 2-5% alkaline reserve in all paper products. This item passes the Photographic Activity Test.
Color: Within a range of white, off-white or buff
Thickness: Cover stock
Score Lines: To allow for folding the sling where appropriate
Dimensions: When the sling is folded for insertion in the envelope:
3/8" less on top and 1/4" less on side dimensions of the following envelope
sizes:

Uses:
To facilitate the insertion and the removal of objects into and from
envelopes.
When filling out a Purchase Requisition for this product, be sure to include: