This is a set of 8 items. Easy to install! The diameter of the caster cover is approximately 5 cm, and the width is approximately 14 mm. The applicable caster diameter range is 5.0-7.9 cm. ✼••┈┈••✼••┈┈••✼••┈┈••✼••┈┈••✼ #◎Click here for a list of bargain shops◎ ⭐️All items are free shipping! ⭐️Bulk purchases are welcome, please feel free to comment! ⚠️Although it is "new and unused," it has been handled by a person once, so Therefore, it is listed as "like new"! Black 16-15-800