KW-triO 02220 Metal Book Ends 6 Inches / 150 mm is made of strong, heavy-gauge steel with an anti-slip bottom. Pair of Two bookends. The surface is flat. Ideal use in the office, home, school and library. Keep book, binders, video tapes and files in order. Made of strong, heavy guage steel with anti-slip bottom. Various colours for choice in Black, Blue and Red Colours. Product Dimensions: 112 x 104 x 155 mm.