Helium is the best outdoor wheel on the market. Made in Italy for global markets and skating conditions, Helium is made for recreational skating on irregular, uneven surfaces such as sidewalks and roads (parades). Avoid off-road use.
 
Indoor skating rinks discourage the use of outdoor wheels on skating surfaces for two major reasons: (1) debris embedded in your wheels will damage the poly coatings and (2) the conditions of outdoor wheels reduce your roll on indoor surfaces—you're wasting your time. Don't be the person wearing outdoor wheels in indoor rinks/skating centers. Helium is 64 mm, making it larger than a figure wheel (63) and much larger than freestyle wheels (55, 57 mm). Therefore, Helium is best for recreational use. Avoid off-road use.