This gold groove design tungsten band ring is made of polished tungsten carbide. Comfort fit design (rounded dome shaped inside design) make the ring slide on your finger easily and sit on your finger more comfortably. Maintenance free, scratch resistant and hypoallergenic (cobalt free and nickel free). Band measures 8 mm. Brand: BERRICLE Design: Novelty Style: Bands & Sets Occasion: Valentine's Day Resizable: No Adjustable: No Size/Dimensions: 12 Gift Box: Gift Box