... and beryllium copper;etcsurface treament black oxide,Zinc/Nicke/Chrome plating,power coating,oiled to prevent rust,passivate,etc ... so on or as your request2).Finish: Nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated ... .PLEASE NOTE: Please allow 5-9 business days for your shipment to arrive.About the payment:TT 30 ... Your satisfied is our bussiness! Compression Spring For Toys