This crimpy rail is a nice mixture of something bigger than a crimp, but not quite a rail or a jug. All we really know is it's fun to climb!
This hold is also available textured and non-textured. The texture is the same that we use on our climbing volumes. If you prefer something easier on the fingers, but that requires very precise catches you can order them without texture. Many system walls will come with holds like this and untextured wooden holds are fantastic for training and gripping hard!