Description:

The Sharpening Guide Clip (Angle) helps to maintain the same sharpening angle of 15° while sharpening your knife,

as seen in product pictures. The purpose of the soft plastic on the inner side of the clip is to prevent the blade from getting damaged, 

while a special ceramic strip alone both sides guards against damage to sharpening stone and guide clip and enabling sooth sliding on the whetstone without damaging it.