This is an EYE CHECK golf marker. I bought one for myself and secretly for a friend, but it turns out my friend also bought one, so I'm putting this up for sale. I searched for it, but I couldn't easily find where to buy it. I purchased it through crowdfunding, so I'm guessing it's not generally available yet. There aren't many of these on Mercari either. I used it on the course the other day, and I liked it. - Model Name: EYE CHECK - Type: Golf Marker - Color: Titanium This is the "EYE CHECK" distance measuring ball marker for golf. It's manufactured by IDAMakers and made in Korea. It has a scope structure, and you can visualize distances from 3m to 10.5m just by turning the marker. It doesn't require batteries or a step counter, and it helps you accurately gauge the distance for putting. Please refrain from purchasing if you are overly concerned about minor details.