Picks come in many different shapes, sizes and thicknesses, some have more or less grip...actually the variations are endless and everyone has their own preferences. We are asked daily for advice to "the best or most suitable plectrum", but of course there is no such thing.
The choice of one pick or another comes down entirely to the preference of the guitarist, starter or advanced. That's why Dunlop has these handy Variety Packs; a collection of 12 totally different picks in one bag. Then you can try some out to develop your preference. This set contains mostly light to medium thicknesses.