#4 Glassine Envelopes (Box of 1,000)

3 1/2″ x 4 7/8″

The #4 Glassine envelopes are ideal to use when collecting, storing or shipping large-sized butterflies like Monarchs and Swallowtails. They can also be folded in half and used for two small butterflies. All butterflies should be placed in the envelope with their wings folded closed in resting position.