Description: 1 Piece black aluminum alloy diving finger spool with 1 piece brass double end snap hooks. The finger spool is empty and ready for you to add your own choice of line. The spring loaded bolt snap with large swivel eyelet, quick and simple attachment of additional items to your scuba diving gear harness, weight belt or other equipment. Corrosion resistant, high strength, durable and lightweight. Great gear accessories for underwater scuba diving, free diving, snorkeling and so on. Specification: Diving Finger Spool Material: Aluminum Alloy Size (Outer Diameter x H): Approx. 8.3 x 5.1 cm / 2.27 x 2 inch Axis Center Hole Diameter: Approx. 3.2 cm / 1.26 inch Slot Width: Approx. 4.3 cm / 1.69 inch Color: Black Double End Snap Hooks Material: Pure brass Size: Approx. 9 x 2.2cm/3.54 x 0.87 inch Color: Gold Package Includes: 1 Piece Diving Finger Spool 1 Piece Double End Snap Hooks Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!