The water-durable "Capri Anklet" from Jenny Bird includes four non-removable extender rings, making it easy to adjust to your ideal length.

rhodium ion plated steel
freshwater pearl
lobster clasp
finish: high polish

product measurements:
wearable at 21.29cm / 8.38", 23.34cm / 9.19", 25.56cm / 10.06", or 27.64cm / 10.88"
pearl height: 6.5mm / 0.26"
pearl width: 5.3mm / 0.21"
note: pearls are natural, shape and size will vary
weight: 1.06g / 0.037oz