Transparent Graphic Triangle 45/90 - 8" Alvin from $2.53 $2.85 Qty. Add to Cart SKU: ALV-S1450-8 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Economical drafting tool features molded 0.08" polystyrene, and built-in finger lifts to make handling easier. Tweet