D'Addario Zyex Viola String Set, Short Scale, Medium Tension Switches The DuraGrip guitar picks are

The DuraGrip guitar picks are made from D'Addario Duralin (also known as Acetyl or Delrin) is a unique material with an extraordinary combination of strength

These also come factory spec'd with no logo on the headstock

Looks like an Explorer

Wide dynamic range and high SPL gives an edge to your streaming and recording applications

D'Addario Zyex Viola String Set, Short Scale, Medium Tension Switches The DuraGrip guitar picks areSized to fit short scale viola (body length 14 15 inches) with a playing length of 13 inches (330mm), these medium tension strings are optimized to the needs of a majority of players. Packaged in uniquely designed sealed pouches providing unparalleled protection from the elements that cause corrosion. Zyex synthetic core strings produce an extremely warm, rich sound. Zyex strings are made from a new generation of synthetic material, creating strings