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.Sometimes I have to substitute keys of a similar size, shape or color.Two day handling time, USPS First Class Mail (excludes weekends, holiday, & day of purchase/payment)International Shipping Available. :) Please contact me if shipping to your country is not specified so I can add it to the list!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!