I have been a repeat customer with these tire crayons due to the low cost for more product position. I have used them in all seasonal conditions and I am somewhat disappointed. These crayons perform well in the mild to semi hot times of the season, however there are factors to getting them to perform clear on the rubber. If tire is too dirty, too slick, too hot, too cold, they are lacking in performance. Also they break very easily. If you press too hard while writing they break in half. Sharp edges and new tips write well in the beginning, but dull out as they round out. They get the job done but not as I would like them to.
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