Use Dritz Slide Adjusters to make strap lengths adjustable for a perfect, comfortable fit. The double loop is suitable to use with fabric, elastic or webbing. Ideal for straps on suspenders, pet collars, bags, totes and purses. For 1in straps. Make strap lengths adjustable. Suitable for use with fabric, elastic or webbing. Ideal for straps on suspenders, pet collars, bags, totes and purses.