What are they for and what is the difference between them and Dif-pads>
Silicone, flowable or gasket maker, will have a different ‘feel’ to its binds than dif pads. Dif pads are designed for yo-yos with a pad recess whereas silicone works best in a silicone recess. Pad recesses are wider and less deep than a silicone recess.
and if i might say so my self silicone works much better