This A6 silicone building block notebook features a durable silicone cover and paper interior, making it resistant to damage. It includes a detachable silicone buckle for added convenience. The inner pages are designed with horizontal lines to offer a smooth and natural writing experience. Perfect for kids, it fits easily into most handbags, briefcases, pockets, or school bags—ideal for jotting down ideas and inspirations on the go.100 sheets of interior pages3.9"W×5.9"H