38mm (1.5") x 4mm thickness, strong and sturdy and will nit pull open.
Rectangle rings, strap connectors.
Also available in 20mm (3/4") and 25mm (1")
Rectangle rings available in Silver, Gold, Rose Gold, Antique Brass, Gun Metal and Rainbow.
The brushed finish provides a high gloss finish without a reflection, a matte look.
Thinner ones
4mm thickness, 20mm inner diameter
5mm thickness, 20mm inner diameter.
Sold in sets of 2
Cost from $3.50