Good condition. 8mm. Description of each in order below. 1. Double Flare. Stainless. Hollow. 2. Double Flare. Blue Stainless. Hollow. 3. No flare. Divers for bands. No bands included. Solid. 4. Screw on back. Flared front with green jewel design. Hollow. 1 of them is missing the screw on back. Sold as a lot Please allow 1 mm deviation due to manual measurement.