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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Type 400 stem density mates to types 170 or 250 but not to itself
Contains moisturizing agents to soften hands
Soak-Proof Shield® helps keep grease from seeping through
UV treated
Good for sealing light-weight shipping cartons
6 x 9" White Flat Tyvek® Envelopes 48 1/2x48 1/2x5 box Type 400 stem density matesTyvek envelopes provide superior puncture, tear and moisture protection. Constructed from 14 lb. olefin. Ten times stronger than paper envelopes. Feature self seal closure. Available in plain and First Class printed borders.
