【Super Strong】: each push pin can hold more than 10 sheets in A4 format. You can attach them to the refrigerator, whiteboards, maps etc 【High-Quality material and good size】: a pIn is 12 mm x 16 mm, has a cone shape and is made of nickel-plated stainless steel; easy to store in a small box. 【Widely Used】: ideal for storing printing paper, notes, photos on whiteboards, fridge, bulletin boards, magnetic cards and other magnetic surfaces. Great addition to your office products and stationery or home consumables that can be used anytime and anywhere and create spaces. 【Great Value】: 20-pin push pin magnets and a small box are included. The material of the magnets is neodymium, the strongest and most permanent magnetic material. 【Our Commitment】: As a professional magnet seller, Wukong has been trying to provide you with better service. If you have any questions about our products, please feel free to contact us. If the product you received is defective, please let us know. We will send you a replacement or refund