<https://pmirope.com/product/pmi-two-eyed-cyclone/#product>
<http://schema.org/description>
"These prusiks feature eye-to-eye construction in a 50% aramid, 50% polyester material, for heat resistance and durability.  Commonly used by arborists for footlock and double rope techniques, eye to eye split tail prusiks may also be used to create a convenient, versatile self-locking hitch for other applications as well.   The thermally resistant material of the Cyclone helps reduce glazing due to heat buildup, thereby increasing its usable life.&amp;nbsp;"
<https://pmirope.com/product/pmi-two-eyed-cyclone/>