and it sucks. It also has a tiny tear that isn't very noticeable, but it still bothers me because it shouldn't be there. It also comes without centimeters. It's only 1-24 inches and the other end is 1-12, 0, 12-1 which I think is totally unnecessary unless you need it. Maybe in math or something, who knows. Below is a review I wrote for the Pacific Arc line and if you seriously need a specific line, read on. Please remember that I am now talking about the Pacific Arc first hand so the other Westcott would be what that line is exactly. look at. I like that. (Arc of the Pacific) I don't know if I should keep 18 or take 24. It's not flexible if that's what you want. If you want flip flops, try Westcott's stainless steel collection. It has soft wood on the back like a bulletin board, preventing it from scratching your surfaces. This ruler (Pacific Arc) is hardened. The edges aren't sharp enough to ignore these absurd reviews. They don't penetrate your skin, but they can scratch it, and they can probably cut dough and other materials, but not your skin. If someone doesn't stab you, you might bleed to death, but it's not going to be crazy. This one (the Pacific Arc) has centimeters, the Westcott has 24 in a straight line, and then the side says 1-12 in centimeters, 0, 12-1 in inches, and again no centimeters (Westcott). I also like that the Westcott has a center hole at the top and that the edges are square on both sides, as opposed to that Pacific bow which has one edge curved. However, both brands have been scratched in my experience, but this is just one and it's blacked out. I don't know why they have to have minor imperfections but I really don't want to return just for a replacement when the markings are barely visible and don't affect visibility or performance. Still a bummer. Another plus, albeit for the Pacific Arc, is the conversion chart on the back! Inches = millimeters 1-24. It also has fractions of an inch. Now forgive me I'm not a genius so I have no idea if I'm speaking correctly but I think it's 1/2 inch = millimeter to decimal. An example as given in the ruler (1/2 = 12.70000), it has a huge ruler for these kind of transformations and that's it. 1/2, 1/4, 3/4, 1/8, -7/8, 1/16-15/16, 1/32-15-32 - 31/32, 1/64-63/64 I know not why anyone would use this but im sure someone needs it so its perfect for you if this is you!