Durable & Sturdy: The black floating shelves are made of MDF (medium-density fiberboard), making them durable, scratch-resistant, water-repellent, and easy to clean. The concealed metal bracket offers excellent load-bearing capacity and stability, supporting loads of up to 40 lbs (18 kg). Available in various colors and sizes, perfect for individual combinations.9.3IN (23.5 CM) Extra Width & High Stability: Our wooden floating shelves measure 16 x 9.3in (40.6 × 23.5 cm), offering significantly more storage space than many standard shelves with only 5.5in (14 cm) depth. With an impressive thickness of 1.5 inches(3.8 cm), it is exceptionally sturdy – the solid construction prevents sagging and ensures long-lasting shape retention.