Description: 90 degree swivel scuba diving dive regulator adaptor. Made of chrome plated marine grade brass,durable and corrosion resistant. Helps prevent second stage pulling from mouth when Head Turns. Increased comfort of second stage regulator. Size:Approx.3x3cm/ 1.2x1.2inch;Diameter:Approx.1.4cm/0.6inch Package Includes: 1 Piece Scuba Diving Regulator Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!