make-shift Tuple class for .NET 3.5 which doesn't include it

Pair.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Utilities
{
    static class Pair
    {
        public static Pair<T1, T2> Make<T1, T2>(T1 fst, T2 snd)
        {
            return new Pair<T1, T2> { First = fst, Second = snd };
        }
    }

    class Pair<T1, T2>
    {
        public T1 First { get; set; }
        public T2 Second { get; set; }
    }
}