If you have wheels with rounded lips : http://socalskateshop.com/images/products/thumb_15984_Abec_11_FreeRide_Green_FTN.jpg They are made to slide .
If you have wheels with rounded lips : http://socalskateshop.com/images/products/thumb_15984_Abec_11_FreeRide_Green_FTN.jpg They are have a little grip when needed .
If you have wheels with rounded lips : http://socalskateshop.com/images/products/thumb_15984_Abec_11_FreeRide_Green_FTN.jpg They are made to slide but have a little grip when needed .