실리콘 항문 구슬 버트 플러그 유연한 항문 트레이너 항문 체인 5구슬

The five balls give a nice gradual stretch that's perfect for building up. It's flexible enough to curve with your body, and the smooth silicone makes insertion feel comfortable right away. Cleanup is easy too, which is a big plus for me.

The silicone is very smooth and soft, which made insertion much easier than I expected. It stays in place well during use, though I wish the balls were slightly larger for more sensation.