Material: carbon fiber + aluminum alloy
Color: carbon fiber tube is black / aluminum alloy has black red blue three colors

The outer dimensions of the product about: D20*152mm, D20*117mm, D20*203mm
D20*228mm, D20*228mm, D20*254mm, D20*279mm, D20*304mm, D20*330mm
Product specifications approx.: outer diameter D20mm, length: (distance between two O-rings) 5 inches, 6 inches, 7 inches, 8 inches, 9 inches, 10 inches, 11 inches, 12 inches
Product weight: about 53g, 55g, 57g, 59g, 61g, 63g, 65g, 67g
Product buoyancy: about 39g, 47g, 55g, 63g, 71g, 79g, 87g, 95g,
The net buoyancy of the product is about 14g, 8g, 2g, 4g, 10g, 16g, 22g, 28g,

Features and selling points:
1. New upgraded double-ball head hollow design to reduce its own weight;
2. Double steps increase the sense of hierarchy
3. Ultra-light extension lamp arm, under water, the weight of 5 inches is the most weight 14g; 12 inches can reduce the weight of 28g for other equipment
4. Function and purpose: for extending the expansion device
5. Scope of application: suitable for diving photography, single and dual hand-held brackets, suitable for micro-single, SLR camera waterproof case