NO BATTERIES NEEDED-With the pull-string design, the cute plush toy runs under the inertia effect and without the need of batteries, which avoids to replace batteries from time to time, so it is an safe and environmental-friendly design. Just pull white ring-pull, this toy can rotate. We must control the strength when pull, as too much force may result in its broken. ADDITIONAL FUNCTIONS-Wind up toy is a historic toy, it has accompanied with many people. So it is a good choice to be a for your child. Create happy moments with your that they will always remember. It is Perfect to use as game prizes, game , goodie or bag fillers, tokens, rewards, and souvenirs in children's birthday party. WIND-UP TOY-It's just a cute toy, it looks simple and chubby, it has a good touch feeling, with smooth surface and curves. They are made of high quality material, soft plush and high quality, non- plastic. Its proper size fits the kid's hand and tiny fingers very well. Just pull , then release , its tail will rotate! CONSIDERATIONS-This toy is very safe because it is powered by a clockwork motor rather than electricity. type:B: Colour:As Shown Material:Plush + PP cotton Size:The length is about 10cm Package Contents: 1 x Wag Tail Plush Toy Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.