The 351 Strum in the Dark are unique plectrums from Fender. The plectrums are made from cellulose acetate, which makes them glow in the dark. This is predominantly fun for performances because the room is usually quite dark. The plectrums are shaped like Fender’s standard plectrums, which means they are quite wide at the top and quite narrow at the bottom. Consequently, the plectrums are very comfortable to hold while simultaneously being very precise. This pack contains twelve plectrums; four thin plectrums, four medium plectrums, and four heavy plectrums, so you have a plectrum for every style.