The shelf dividers are made of premium acrylic material, crystal clear like glass but stronger, lighter, and safer than wood, glass, ordinary plastic or wire dividers. Plastic acrylic dividers are extremely durable and practical. Thickened bottom clip will not break in the specified range for long-term use. Our acrylic shelf dividers do not have any sharp corners, the rounded and smooth edges will not scratch your bookshelves or clothes, very safe and secure
