A dispensing apparatus includes a first running spool of elongated material and second and third stand-by spools of elongated material. The first spool has a trailing end portion and a first obstacle element secured to its trailing end portion. The second spool has a leading end portion and a first catching mechanism secured to the leading end portion, as well as a trailing end portion with a second obstacle element secured to its trailing end portion. The third spool has a leading end portion and a second catching mechanism secured to its leading end portion. A support member is configured to at least partially support the leading end portions of both the second and third spools.