The bookmark is made of silicone material. which is non-toxic, waterproof, not easy to break and durable, safe to human body, can be applied repeatedly and accompany you for a long time. It is designed with small hand shape, it seems that someone is calling for help. When you close the book, a hand is waving like hey, help me, i am still here, bring you an funny reading experience. Customized logo is available.