Price is per 1 pc in choosen size. 
 
 
Metal semicircles (D- rings) are small sewing accessories.
 
Used as a connecting element between two things: a belt with a purse or a lanyard with a carabiner.
 
Practically in every industry. Clasp buckles used to create fasteners on dog leashes, bags and backpacks. In the clamps of workwear and military bands. In the fasteners of baby carriers and prams.