<https://violinoutlet.com/string-accessories/bass-accessories/bass-rosin/#webpage>
<http://schema.org/description>
"Purchase upright bass rosin. Bass rosin is required for optimum grip of the bass string while playing arco (with the bow). Kolstein, Carlsson, Pops & more"
<https://violinoutlet.com/string-accessories/bass-accessories/bass-rosin/>