and medial band may include a scalloped out arcuate recess to reduce metal fatigue and prevent breaking when adjustments are made the overall configuration gives the apparatus a slight rabbit ear type appearance fig2 4 show how the device 100 is installed on either live or dead bait 220 this entails simply placing the flexible medial band on the ventral side of the fish immediately underneath and behind the gills 230 the band is wrapped around the ventral portion of the fish and may be shaped to closely conform to the ventral and side aspects of the fish the band portion extends upwardly alongside the rear border of the operculum gill cover 240 where the fin elements extend outwardly from the fish the band is placed fore of the point of greatest girth and is thus prevented from sliding backwards during use while pectoral and pelvic fins may be slightly or fully restrained if the fish is alive and to be kept alive the gill cover is not pinned down or otherwise obstructed or restrained and will continue to allow gill function further placement of the band is such that the gills operate to prevent slippage of the apparatus forward and over the head of the fish as the fish is pulled through the water next the fin elements may be adjusted either inwardly or outwardly or differentially relative to one another this is facilitated by the adjustment creases 150 160 which comprise slightly indented depressions or channels running transversely from one edge of the lobe to the other the material is simply thinner relative to neighboring material and therefore bends more easily at the adjustment creases the flexible material from which the spinner is made also.