Many window options from variable-width sunburst shapes to designer shapes like "Cathedral" and "Diamond"
Many options of textured solid and variegated colors
Raised or flush design
10 ball steel rollers for consistently smooth operation
14 gauge "wide body" hinges for greater stability and longer life
Rust-inhibitor prime-coat with baked on polyester paint finish
Very high R-value CFC-free polystyrene cores helps keep the cold out!