It makes a smooth rotation with resistance. It's small, but I firmly grip it. I am not sharp enough to hurt. It is 110 g × 2 (RL). Compared to other companies' equivalents, it is elegant, but you can choose the same color as crank. It can be mounted with a 6 mm wrench. There is a hole to attach a to clip or reflector. It was the cheapest place I looked for. At this price forever.