Thread the strap through the slide up 1 opening over & down under opposite gap. Position slide approx. 10cm or 4 inches from end of strap .This will be the back end.
Thread a hook to back end (hook facing centre when attached to top), thread the back end through top centre bar of slide under 1rst layer of strap., over bar ,down opposite gap of slide. Leave approx. 3cm 1 1/4 inches of excess length of strap. Stitch to under strap as shown.
Front edge of strap ,thread hook to front end of strap, turn raw edge over by approx. 2cm ,stitch across to secure ,trim raw edge. Hook facing the same direction as back edge hook.
Repeat opposite strap.