Bias Tape ~ 1/2" Wide Double-fold Bias Tape ~ Black ~ Poly Cotton (10 Yards/Pack) Bias Tape ~ 1/2" Wide Double-fold Bias Tape Black - Poly Cotton (10 Yds / Pack) Binds straight or curved edges. Color accent for home and apparel. No ironing needed. Colorfast. 1/2" (13mm) wide 50% Polyester / 50% Cotton