2PCS accessories: 1 x 5-inch carbon fiber buoyancy light arm & 1 x underwater tray Scope of application: suitable for diving photography, single and double handheld brackets, suitable for Micro-single lens, SLR camera waterproof case, suitable for Canon, Sony, Nikon, Panasonic, Olympus Features and selling points: 1. New upgraded double ball head hollow design to reduce self-weight; 2. Double steps increase layering 3. Ultra-light extension light arm, under water, the weight of 5 inches specifications is up to 14g Material: metal+Aluminium Color: black underwater tray: Type:Hand Grips/Finger Grooves Feature:Adjustable Handheld Stabilizer Aluminium Tray/Grip:for Underwater Camera Housings Accessory:underwater video stabilizer tray Mount:for waterproof case Underwater tray is used as a support platform for your underwater housing. Two 1 inch Balls allow for the attachment of accessories such as arms, to which you can then attach additional accessories, including strobes and focus / video lights. Underwater tray has a 1/4 inch screws, which are standard for majority of underwater photography / videography system Suitable for majority of underwater housings produced by any manufacturer It is a sturdy platform for mounting underwater video strobe flash lights by attaching arms to ball mounts. Length: 9 inch / 24 cm (12 inch/ 33 cm) Collapsed | Extended Height: 7 inch / 18 cm Width: 2.5 inch / 6.5 cm Waterproof: 328 ft / 100 m Ball size: 1 inch/2.5cm carbon fiber buoyancy light arm: Function and use: for extension and expansion equipment Size: 140 x 25 x 25mm Product specifications about: outer diameter D20mm, length: (distance between two O-rings) 5 inches Package Contents: 1 x 5-inch carbon fiber buoyancy light arm 1x underwater tray 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.