A round module builder for forming a round module (100) is proposed. The round module builder (80) for forming a round module (100) comprising an outer circumference (105), a first end (110), a first edge (120) adjacent the outer circumference (105) and the first end (110), a second end (115), and a second edge (125) adjacent the outer circumference (105) and the second end (115), the round module builder (80) comprising: a first module-forming portion (85) configured to receive a crop a second module-forming portion (90) pivotally coupleable to the first module-forming portion (85), the first module-forming portion (85) and the second module-forming portion (90) configured to rotate the crop into the round module (100) a wrapping device (175) coupleable to at least one of the first module-forming portion (85) and the second module-forming portion (90), the wrapping device (175) configured to position a wrap (180) onto the outer circumference (105), the first edge (120), and the second edge (125) of the round module (100). In order to facilitate accurate wrapping of the round module it is proposed that the round module builder further comprising: a wrap indication device (310) coupleable to at least one of the first module-forming portion (85) and the second module-forming portion (90), the wrap indication device (310) configured to measure an indication of the wrap (180) on at least one of the first edge (120) and the second edge (125) of the round module (100). A respective method is proposed.
