Roll, ▪ formed as a sliver thickness detecting measuring roll and configured to be used as a sliver transport roll, and ▪ including - an outer walling, which • is formed circumferrentially, • extends parallel to an axis of rotation of the roll, as well as • faces away from the axis of rotation, and - a plurality of depressions, which • are formed in the outer walling, • extend parallel or at an acute angle to the axis of rotation of the roll, and • essentially are formed radially in the direction of the axis of rotation, • wherein the depressions, seen in the direction of the axis of rotation of the roll, each include a first walling, which o starting at a first start point at the outer walling, o to a radius line, which includes the first start point, includes an acute angle (α), and o with the outer walling, starting at the first start point, includes an obtuse angle, • and each include a second walling, which o starting at a second start point at the outer walling, o to a radius line, which includes the second start point, o includes an acute angle (β) or o extends parallel, o with the outer walling, starting at the second start point, includes an obtuse, respectively right angle, and o is located opposite facing the first walling, ▪ characterized in that a walling of the respective depression includes an angle with the outer walling, which is smaller than the angle, which the other walling of the respective depression includes with the outer walling. ▪ formed as a sliver thickness detecting measuring roll and configured to be used as a sliver transport roll, and ▪ including - an outer walling, which • is formed circumferrentially, • extends parallel to an axis of rotation of the roll, as well as • faces away from the axis of rotation, and - a plurality of depressions, which • are formed in the outer walling, • extend parallel or at an acute angle to the axis of rotation of the roll, and • essentially are formed radially in the direction of the axis of rotation, • wherein the depressions, seen in the direction of the axis of rotation of the roll, each include a first walling, which o starting at a first start point at the outer walling, o to a radius line, which includes the first start point, includes an acute angle (α), and o with the outer walling, starting at the first start point, includes an obtuse angle, • and each include a second walling, which o starting at a second start point at the outer walling, o to a radius line, which includes the second start point, o includes an acute angle (β) or o extends parallel, o with the outer walling, starting at the second start point, includes an obtuse, respectively right angle, and o is located opposite facing the first walling, ▪ characterized in that a walling of the respective depression includes an angle with the outer walling, which is smaller than the angle, which the other walling of the respective depression includes with the outer walling. - an outer walling, which • is formed circumferrentially, • extends parallel to an axis of rotation of the roll, as well as • faces away from the axis of rotation, and • is formed circumferrentially, • extends parallel to an axis of rotation of the roll, as well as • faces away from the axis of rotation, and - a plurality of depressions, which • are formed in the outer walling, • extend parallel or at an acute angle to the axis of rotation of the roll, and • essentially are formed radially in the direction of the axis of rotation, • wherein the depressions, seen in the direction of the axis of rotation of the roll, each include a first walling, which o starting at a first start point at the outer walling, o to a radius line, which includes the first start point, includes an acute angle (α), and o with the outer walling, starting at the first start point, includes an obtuse angle, • and each include a second walling, which o starting at a second start point at the outer walling, o to a radius line, which includes the second start point, o includes an acute angle (β) or o extends parallel, o with the outer walling, starting at the second start point, includes an obtuse, respectively right angle, and o is located opposite facing the first walling, • are formed in the outer walling, • extend parallel or at an acute angle to the axis of rotation of the roll, and • essentially are formed radially in the direction of the axis of rotation, • wherein the depressions, seen in the direction of the axis of rotation of the roll, each include a first walling, which o starting at a first start point at the outer walling, o to a radius line, which includes the first start point, includes an acute angle (α), and o with the outer walling, starting at the first start point, includes an obtuse angle, o starting at a first start point at the outer walling, o to a radius line, which includes the first start point, includes an acute angle (α), and o with the outer walling, starting at the first start point, includes an obtuse angle, • and each include a second walling, which o starting at a second start point at the outer walling, o to a radius line, which includes the second start point, o includes an acute angle (β) or o extends parallel, o with the outer walling, starting at the second start point, includes an obtuse, respectively right angle, and o is located opposite facing the first walling, o starting at a second start point at the outer walling, o to a radius line, which includes the second start point, o includes an acute angle (β) or o extends parallel, o with the outer walling, starting at the second start point, includes an obtuse, respectively right angle, and o is located opposite facing the first walling,