[Cheefa]

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please use the search function.

you can slide those wheels, rounded lip wheels slide better then square lip wheels (what you seem to call flat wheels....) you can do stand up slides withought gloves, but if you want to do colemans and other types of slides make a set of gloves with poly carb cutting board and a set of work gloves ( either melt or glue the chopped pieces of board onto the glove)