Item type: Diving Floating Arm _x000D_ Condition: brand new_x000D_ Material: carbon fiber_x000D_ Color: As picture shown_x000D_ _x000D_ Optional Size: 8in, 10in_x000D_ 8in floating arm Approx. 22x6x6cm/8.7x2.4x2.4in_x000D_ 10in floating arm Approx. 30x6x6cm/11.8x2.4x2.4in 1Made of high quality carbon fiber aluminum material, corrosion resistance, sturdy and durable. 2Dual ball design, lightweight and practical, easy to carry and use. 3With ball ends press fit and glued in trapping air to keep the arm buoyant. 4Floating arm is suitable for macro and wide angle photography. 52 different size for you to choose, meet your different needs.1 x_x000D_ _x000D_ DivingFloating ArmPlease allow 3?5 cm error due to manual measurement. Thanks for your understanding.