difference between protos?

[bonab]

whats the difference between proto grippers and sliders? i ride a lot of street so which one would be better?

 

[Hunter Treviranus]

sliders have harder PU( good for "sliders")
Grippers have softer PU ( grip the ground better)

street= sliders
Park= grippers
park and street=slider in front gripper in back

 

[Cannoli]

PU is like the rubber if you didnt know