Features: 1) Doesn't extend or roll over 2) Long operating life 3) Reduced number of replaces thus lowering maintenance time and cost 4) Customized orders welcomed 5) Belt type and length:a) Y: 12'-100'b) Z: 12'-100'c) A: 12'-200'd) B: 20'-60'e) C: 30'-600'f) D: 100'-600'g) F: 100'-600'