1. Product material: 304 stainless steel 2. Product specifications: 1) 5 sections: shrinkage 150mm, elongation 600mm; outer diameter 14mm, inner diameter 9mm; weight 35g. 2) 8 sections: shrinkage 95mm, elongation 485mm; outer diameter 12mm, inner diameter 4mm; weight 22g. 3) 6 sections: shrinking 130mm, elongation 620mm; outer diameter 10mm, inner diameter 4mm; weight 21g. 3. It can keep away from the smoke and smoke, and supply oxygen to the fire at high speed and effectively. It can be used to supply oxygen to the fire without blowing too much force. 4. Convenient to carry, the design of the two ends of the neck is not hurting the mouth.
