Embodiments disclosed herein relate to an apparatus (1) for use in the manufacture of tobacco industry products. The apparatus (1) comprises a rolling unit (9) comprising: •a rotatable drum (14) having a plurality of flutes (18) formed in a curved outer surface (17) of the drum (14) to receive axially-aligned components (5,6) of a tobacco industry product; •a roll hand (15) having a contact surface (34) facing and spaced from the outer surface (17) of the drum (14) to define a space, between the contact surface (34) and the outer surface (17), within which space components of a tobacco industry product are rollable upon rotation of the drum (14); and •a kicker bar (16) disposed adjacent to the roll hand (15) and having a contact edge (36) facing and spaced from the outer surface (17) of the drum (17). At least one of the roll hand contact surface (34), kicker bar contact edge (36) and drum outer surface (17) includes a groove (31, 32, 33) extending in a substantially circumferential direction of the drum (14) and configured to least partially receive one or more of the tobacco industry product components as the drum (14) rotates.