Parallel ridges running the full length of the roller, creating a series of even, consistent lines of contact. As the Comb rolls across your leg, each ridge draws a smooth track along the muscle — like fingers combing through the tissue in long, even strokes. The ridged pattern creates gentle channels between each line of contact, giving the tissue somewhere to move rather than just compressing it flat. The effect is a light, stimulating sensation that encourages daily mobility without applying deep pressure. It's the roller equivalent of a Swedish massage — long strokes, steady rhythm, easy breathing. Comes as a set of 3 — one for each of Therabot's massage nodes. Best for: Calves, quads, and hamstrings when you want to promote daily mobility and loosen up without intensity. Great for warm-ups and cooldowns. The feeling: Like someone running their fingers in long, parallel lines down the length of the muscle — smooth, rhythmic, and consistent. Intensity: Low to moderate. The ridges add texture without concentrating force, so the sensation is stimulating rather than deep.