between the ends of two sections of downspout 12 a 12 b that are to be coupled the device 100 may then be placed between the ends of two sections of downspout 12 a 12 b one end 102 a of the outer sleeve 102 is placed over the end of a first section of downspout 12 b in the figs as indicated by the arrow u2018 b u2019 with the snap buttons 114 a 114 b pushed inward through the holes 116 a 116 b in the sleeve 102 the insert 104 may be extended as indicated by the arrow u2018 c u2019 such that the enlarged outer end section 106 of the insert 104 is placed over the end of the other downspout section 12 a while leaving the other inner end of the insert 104 within the sleeve 102 when the snap buttons 114 a 114 b align with respective holes 116 a 116 b in the sleeve 102 the snap buttons 114 a 114 b snap through the holes 116 a 116 b fig6 a 6 b biased by their respective leaf springs 110 a 110 b the device 100 may thus be locked in place between the two sections 12 a 12 b of the downspout system and water may flow freely from the gutter 14 through the first downspout section 12 a through the device 100 and into.