These bracelets are handcrafted from nickel (a very hard, silvery white, lustrous metal, somewhat heavier than iron). Nickel holds its luster and does not tarnish easily.

We have seen these items on some sites claiming they are sterling.  Any sterling items from Mexico will be marked with ".925". Bracelets, like the ones shown here, will be marked "alpaca".
 

B819/$7.00  White Resin/Abalone 1" width/Bendable	B815/$8.00 Abalone 1" width/ Bendable	B821T/$8.00 Purple Tinted Abalone Completely Bendable 1" width	B814/$7.00 White Resin/Pink Clam 1 1/4"  Band Width Bendable
TB101R/$7.00 Red ResinAbalone/Pearl  Bendable 1" width	TB101/$7.00 Blue Resin/Pearl Completely Bendable 1" Width	B841R/$8.00  Abalone/Pearl  Completely Bendable 1" width	B841TR/$10.00 Abalone/Pearl 1" Width Bendable
B841RT/$8.00 Abalone/Pearl 1" width  Bendable	B786/$7.00 Black enamel/pink clam/abalone 1 1/4" width Bendable	B864/$10.00 Abalone Latch Bangle Fits 6" wrist (measure around)	TB104/$7.00 Blue EnamelAbalone/Pearl Completely Bendable 1" Width
B821V/$8.00 Abalone Completely Bendable 1" Width	B857V/$8.00 Nickel Silver  (alpaca) Brass Loop Adjustable Bangle 1/2" width	B821RT/$8.00 Abalone  Bendable 1" Width	B821TR/$8.00  Abalone 1" Width Bendable
B778P/$7.00 Black resin/Pearl 1" width Bendable	B568/$12.00  M other of Pearl Cuff 3/4" width NOT Bendable Fits 6 1/4 wrist	B568P/$12.00 Mother of Pearl Cuff NOT Bendable 3/4" band width Fits 6 1/4" Wrist	B915/$10.00 Abalone 1 1/4" Width