D’Andrea USA’s Shell Celluloid Guitar Picks provide players with the perfect striking surface. The unique combination of durability and “memory” make this pick the top choice for the serious player. The Pro Assortment fulfills all of your pick needs in one shot. The 504pc kit comes with an assortment of Shell Celluloid picks in 351, 346, 355, and 358 shapes in thin, medium and heavy. Also includes an assortment of thumb and fingerpicks in all four patterns. Proudly Made in USA!