• All-in-one bookmark pen: combines marker, pen, and eraser in a single product. • Ideal for saving your page and writing notes in books and journals, with the option to erase mistakes. • Compatible with books of all shapes and sizes, from textbooks to magazines. • Uses high-quality erasable gel ink and features a comfortable grip. • The friction eraser leaves no residue. • Portable and lightweight design with an ultra-thin 4 mm profile and a sturdy clip. • Perfect as a unique gift for friends, family, and loved ones. • Product dimensions: 1.5 cm wide, 0.4 cm high, 15 cm long.