The sand grip on the part that rests against the pad of your thumb improves the fit, making this a thumb pick that won't tire you out even when playing for long periods of time.
The polishing method gives the pick a smooth feel that feels comfortable in your hand, similar to a Terry Gold flat pick. The matte finish with reduced gloss prevents slipping caused by sweat or oils from your fingers while maintaining a luxurious look.
The sand grip on the part that rests against the pad of your thumb improves the fit, making this a thumb pick that won't tire you out even when playing for long periods of time.