Meanie 14Kt Yellow Gold Sculpted roller derby skate end with real spinning wheels and 1x clear CZ Measuring 8.1 x 7.7 mm Gem size: 0.8 mm Internally Threaded for: 1.6 mm (14G) Non-Sterile Vendor: Junipurr Fits internally threaded barbells in 1.6 mm/14g from all APP approved jewellery vendors (USA)