These footrests/pegs are made of thick steel.  Highly adjustable for different size operators.  They bolt to the corner post of a John Deere Tractor.  You can put your weight into them and these footrests will not bend.  The legs of the footrest adjust up and down.  The leg that comes towards the operator adjusts both up and down and forward and back.  The pegs on this leg are also adjustable and reversible.