![Side-Opening, Rectangular Glassine Envelopes Side-Opening, Rectangular Glassine Envelopes](https://cdn11.bigcommerce.com/s-oz6pyys16n/images/stencil/300x300/products/152/620/glassine-envelopes-6-sizes__40476.1686499172.jpg?c=1)
Side-Opening, Rectangular Glassine Envelopes
$1.67 - $23.06
Used mainly for storage of butterflies and moths that have not been prepared. The triangular shape helps keep delicate antennae safer during storage.
Glassine does not stick to the delicate tissues and does not leave a residue on the specimen.
Triangles come in 4 sizes: 50 x 50mm, 70 x 70mm, 90 x 90mm and 120 x 120mm.
Sold in packages of 100