Our binder clips are made of tempered steel, durable and strong to use, Assembled with steel arms, the clips provide an extra strong grip for your documents. Specifications:-No rust on papers- 60 pieces, black metal iron- 1.6"width, 0.7"Capacity- Binder clips and package are both reusable- Strong metal clamps with an opaque black finish- Keeps files bound together, prevents papers from slipping or pulling out- Tempered steel construction provides extra strong holdUser: Everybody.Application: Hotels, Office, Schools, Restaurants, Stores and crafts.