YoYoTricks.com Thin YoYo Lube is the product of years of testing to find the perfect lube for yoyo bearings. Because yoyo bearings are small and spin very fast, special lube is needed. YoYoTricks.com Thin Yoyo Lube keeps bearings from rusting and prevents grit build up that causes yoyo bearings to play responsive. YoYoTricks.com Thin Yoyo Lube helps achieve a quiet and smooth spin. For more information on the proper way to lube and maintain bearings, visit our website.