I have heard that they are technically illegal, but I feel like taking my chances. If I cop tells me to remove it, I will, but I doubt it will ever be an issue. I have used them on off-road machinery and they are very convenient. It's a knob that mounts on your steering wheel, and makes turns much easier. I like mine already. It's very relaxing having a hand on the knob. I'll keep using it for as long as I can. It seems to be best at the 4:30 o'clock position. I think I know why they were made illegal many years ago. In the days of manual (not power) steering, if your front wheels hit a rut, it could make the steering wheel spin very fast, and someone could possibly break a wrist, or at least get a painful bruise. But such a scenario is almost never going to happen these days, with nearly every vehicle having power steering. The law should have been repealed long ago, or at least forgotten. https://www.aliexpress.com/p/tesla-landing/index.html?scenario=c_ppc_item_bridge&productId=1005006049786698&_immersiveMode=true&withMainCard=true&src=google&aff_platform=true&isdl=y&src=google&albch=shopping&acnt=631-313-3945&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&&albagn=888888&&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en1005006049786698&ds_e_product_merchant_id=108890586&ds_e_product_country=CA&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=20225809344&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=20230812629&gbraid=0AAAAACbpRIk2hsHEdQ8fcGQJxgJOdqHfT&gclid=Cj0KCQjwqqDFBhDhARIsAIHTlkuuWDuSDLC0_lav6wJuNPLVIuJ5k_u8jb0OD2PPF2FIWgd-earoilEaAge1EALw_wcB
According to my research, there are no specific laws in Canada forbidding steering wheel spinners, but having one could result in a dangerous driving charge. I'm still keeping mine.
Legal in all 50 states. Sometimes even required for handicapped operation. Washington state says you can't use one if it could snag on your clothing, so either install it well or don't wear baggy sleeves if you live/travel there.