Sort of like an Enum with more data or behavior possibilities.

StaticCLassItemMetadata.cs

    public class Sample
    {
        [Test]
        public void MetadataSample()
        {
            Items.ItemA.ShouldEqual(Items.ItemA);

            Items.ItemA.Description.ShouldEndWith("Description for A");
        }
    }

    public class Items
    {

        private Items(int id, string description)
        {
            Id = id;
            Description = description;
        }

        public int Id { get; private set; }
        public string Description { get; private set; }

        #region Equals Override
        public bool Equals(Items other)
        {
            if (ReferenceEquals(null, other)) return false;
            if (ReferenceEquals(this, other)) return true;
            return other.Id == Id;
        }

        public override bool Equals(object obj)
        {
            if (ReferenceEquals(null, obj)) return false;
            if (ReferenceEquals(this, obj)) return true;
            if (obj.GetType() != typeof (Items)) return false;
            return Equals((Items) obj);
        }

        public override int GetHashCode()
        {
            return Id;
        }
        #endregion

        public static readonly Items ItemA = new Items(1, "Description for A");
        public static readonly Items ItemB = new Items(2, "Description for B");
        public static readonly Items ItemC = new Items(3, "Description for C");
    }