Product Review

With this adaptor, nozzle bottle cartridge can refill gas for screw type canister. 

Features:
Pure Copper construction. 
Enable you to refill screw type gas canister by nozzle bottle cartridge.
Make your screw type canister reusable and save a lot of money.

Specification: 
Material: Copper / Aluminum alloy (Optional)
Diameter: 8mm / 0.3in      
Length: 17mm / 0.7in        
Item weight: 5g / 0.19oz  
Package Size: 6 * 4.5 * 1cm / 2.4 * 1.8 * 0.4in
Package Weight: 5g / 0.19oz      

Package List: 
1 * Gas Refill Adaptor 

Remarks: 1 pair of O-rings is included in silver adaptor and 2 pair in golden. Gas canisters in photos are just for reference, not included!