Approximately 27x12x1.3mm silver plated brass key charms. 4x2.5mm loop. These charms are lead free and meet the EU Nickel Directive. JBB Findings is internationally known as a manufacturer of quality jewelry findings & supplies. Silver plate is a thin surface layer of actual silver. These charms work wonderfully for giving designs an antique and vintage feel. Questions? Call our friendly sales staff at 1-800-366-2156, or email us.