Difference between 2 indexes with columns defined in reverse order

Are there any differences between following two indexes?

• IDX_IndexTables_1
• IDX_IndexTables_2

If there are any, what are the differences?

create table IndexTables (
    id int identity(1, 1) primary key,
    val1 nvarchar(100),
    val2 nvarchar(100),
)

create index IDX_IndexTables_1 on IndexTables (val1, val2)
GO

create index IDX_IndexTables_2 on IndexTables (val2, val1)
GO