Rainbow Trout, Realistic Swimming Fish Water Pool & Bath Toy 8" (Battery Operated) Tail whips back and forth to propel fish forward with realistic swimming motion that works in any type of water Individually packaged in a beautiful clear gift box, perfect gift for your fishing enthusiast! Battery operated (1 AA required, not included) On/Off button located on the bottom of fish To reach battery, please use Phillips screwdriver size 0 by 75mm Battery cover has screw to ensure tight seal to protect from water