What Griffo said,also,I have found -by much trial and error=that for 3/8s and 1/4 inch thinner pouches work better [for me] and 5/8s to 3/4 inch wide is more than sufficient for ,both,i use a 9inch active length for my *draw* which is right at 34 inches,i als use 1"x8" TBG for marbles and 1/2 in steel as well as 3/8s hexnuts,hope this helps a little