REALISTIC FISH SIMULATION: This fish not only looks like a real fish, but it also acts like a real fish as well. It will flip flop when touched and stay still when left alone making endless hours of fun for your dogs! MOTION-BASED SENSOR: The fish toy will adjust its flopping speed according to the motion around it. If it detects that it's being played with, it'll flop faster. If it detects no motion, it'll slow down and eventually stop. SAFE AND DURABLE MATERIALS: It is made for durability and can be washable once it gets dirty. USB CHARGEABLE: Our toy is USB chargeable which saves you from the hassle and costs to replace batteries. PRODUCT SIZE: 12.7CM*30CM; YOUR PACKAGE INCLUDES: 1xMoving Fish Toy, 1x USB Charging Cable.