Silver in color, NOT silver plated or sterling silver!Great variety set of vintage / antique skeleton look key charms!Various sizes from 3/4" to 2 & 1/2" tall! Made of metal. Most keys are double-sided, but a few, mostly the smaller ones, are flat-backed.Keep in mind these are reproductions, not actual working keys!Perfect for crafts, scrap-booking, jewelry, wedding tags or place settings, collections, display - the uses are limited on by your imagination. Custom sets available upon request. Just email me and I'll take care of it for you.Two day handling time, USPS First Class Mail (excludes weekends, holiday, & day of purchase/payment)International Shipping Available! If you don't see your country on the list please email me and I'll be glad to give you a quote.A similar 40 piece gold set can be seen here:https://www.etsystudio.com/listing/521890031/40-steampunk-skeleton-keys-gold-charms?ref=shop_home_active_29A similar 40 piece brass / bronze set can be seen here:https://www.etsystudio.com/listing/201670690/40-steampunk-skeleton-keys-brass-charms?ref=shop_home_active_1Please email any questions before purchase, and thanks for looking!