Fangrui Product Details Universal Style Will Work With Almost Any Brand Of Bcd With A 1 Inch Flex Hose. Suitable For 2.5cm Orifice Large Intestine Tube, Suitable For American Standard Bcd. Send 2 Cable Ties, Including A Drawstring To Fix The Steel Needle. K-valve Is Easy To Get Stuck In Sand And Seawater Crystals, So Be Sure To Clean It Carefully After Going Ashore. Colour: Black Material: Nylon and Metal Size: 65x99mm Package Contents: 1 x Submersible Valve 2 x Straps Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store