I purchased these brackets along with the hardware set that attaches the brackets to the beam and legs.  My husband and I purchased a 4 x 6 x 10 for the top beam, 4 x 4 x 10's for the legs, 2 swings, a trapeze bar and the other needed hardware locally.  Our 6 year old granddaughter is VERY tall for her age so we wanted this swing set tall enough in order for her to use for many years to come.  (Thus, the 10 ft. Legs.) We completed this project in one afternoon and could not be more pleased!  These brackets along with the top beam and legs make for a very sturdy swing set! My husband and I even use it!  Best money I've spent in quite some time and would recommend this product to everyone!