• The package contains 4 pairs/8 black metal bookends. • Each size: 17 x 14.5 x 12.5 cm. • Material: high-quality metal iron. • Smooth rounded edges to protect books, shelves, and hands. • T-shaped base design with 3 non-slip foam pads. • Keeps books, files, and magazines organized vertically. • Helps organize workspace, home, and office. • Perfect for library, office, school, and home organization.