The strap ring inside measurement is 1 1/4" across the top, so these would work well with either 1" or 1-1/4" bag strap.
Each anchor has 4 prongs on the back and 2 washers. Tip: Make sure you stabilize the insertion area on your fabric so that they are nice and strong.
Go here for the Installation Tutorial
or
Download this template to mark prong holes, and use a craft knife or seam ripper to cut the slots in the fabric for the prongs. Place the washers over the prongs on the back side of the reinforced fabric and fold prongs back, tightly over the washer. Use a craft knife, or X-acto knife to neatly trim the protective plastic away from around the base of the metal ring.
Measurements:
- Inside measurement of strap ring: 1 1/4" (34 mm)
- Overall width: 2 1/8" (54 mm)
- Height: 1" (25mm)