https://www.gardenedging.co.nz/product-category/pre-curved-rings/
Pre-Curved Rings Archives - Straightcurve Garden Edging
curved ringsprearchivesgardenedging
https://www.charlesguitars.co.uk/parts-shop/gibson-style/rings-plates-chips-tips-guards-cab/humbucker-mounting-rings-black-flat-or-curved
Humbucker Mounting Rings Black Flat or Curved :: Charles Guitars
Choose from standard Flat Bottom or custom Curved Bottom. Please note that if your guitar top is carved you should not attempt to curve the ring by tightening...
mounting ringshumbuckerblackflatcurved
https://www.safasilver.com/wholesale-silver-gold-plated-striped-adjustable-toe-ring.html
Curved Line Gold Plated Silver Toe Rings - Adjustable Size | Safasilver
Shop elegant curved line gold-plated silver toe rings made from 925 sterling silver. Adjustable size. Perfect for wholesalers and resellers. Only $3.25 each.
gold plated silvertoe ringscurvedlineadjustable