HSG Tungsten Rings for Men Promise Polished Women Center Groove 18K Gold Plated 4mm Wedding Band Main material: Tungsten Carbide . Polishing processing on the inside of the ring makes more comfortable to wear.This tungsten wedding band is 4mm width,high polished and plated gold in center groove.The luxurious feeling of thick precious metal is combined with comfort fit style, which makes this amazing wedding ring to be worn happily. Durable, wear-resistant and permanently polished tungsten rings maintain their initial glamorous appearance. We provide ring box free, so you can save your giftware fee, and help you preserve the ring away from destruction. Lifetime Return Service.