Bernina Binder Attachment for Pre-Folded Bias Tape #87 (25mm) Binder attachment for pre-folded bias tape #87 is the ideal tool for sewing neat edge finishes with pre-folded bias tape, providing garments, home furnishings and quilts with an even, attractive finished edge. For 25mm pre-folded bias binding. Binder attachment for pre-folded bias tape #87 is the ideal tool for sewing neat edge finishes with pre-folded bias tape, providing garments, home furnishings and quilts with an even, attractive finished edge. Binder attachment for pre-folded bias tape #87’s attached bias-tape feeder ensures ease of handling and attractive, even edges. For the best performance from Binder attachment for pre-folded bias tape #87 it must be used with the associated Binder foot #95 / 95C. Easy-to-use Binder attachment for pre-folded bias tape #87 for pre-folded bias tape lets you whip up elegant edge finishes in next to no time.