Features:
Made of high quality aluminium alloy, anti-rust and durable.
Fill small oxygen cylinder with oxygen from the large scuba.
Simple to operate, making diving become easy, no need to carry large scuba.
Small size and lightweight, easy to carry and use.
Portable and practical, essential accessory for diving.

Specification:
Material: Aluminium Alloy
Color: Shown as pictures
Size: Approx. 13.5 * 6.2 * 2cm / 5.31 * 2.44 * 0.79in
Weight: Approx. 250g

Package List:
1 * Scuba Tank Refill Adapter