This decent center brushed with side grooves design tungsten band ring is made of 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: 8 Gift Box: Gift Box