The Wonder Waves are the complete set of Wave Picks. Two are the Cycloid with sharper peaks for a grabby action. You get the C4 which is the Quad with 1/4" waves and the C5 which is the Quint with 1/5" waves. You will also get the Sinusoid C6 Quad and C7 Quint. These have a gentler action than the Cycloids and have more rounded peaks. Put the complete set of Waves in your arsenal.