The Ceramic Small Spool Wood Trim Bobbin from Wasatch Custom Angling Products was designed specifically for use with smaller spooled brands like Pearsall's, Devaux, etc. With a smooth ground, finely polished ceramic barrel that helps protect fly tying threads, flosses, and gossamer silks from fraying or breaking under tension, this specialized bobbin's polished brass balls provide silky smooth spool rotation and a finely figured Cocobolo Wood handle that's easily gripped. A handsome instrument that performs beautifully too, the Ceramic Small Spool Wood Trim Bobbin from Wasatch is great!