This is spring hinge assembly tool of eyeglasses. 

Features: 
This is spring hinge assembly tool of eyeglasses. 
Open the hinge and block it for most hinges. 
Re-align the barrel and put the hinge through the pin, then insert screw into the tube. 
The long blades matches with the screwdriver handle, can tighten the screws. 

Specifications: 
Material: Zinc Alloy 
Color: Black 
Product Size: 7.2 * 5 * 8cm / 2.83 * 1.97 * 3.15in (L * W * H) 
Product Weight: 343g / 12.1oz 
Package Size: 18 * 16 * 5cm / 7.08 * 6.3 * 1.97in 
Package Weight: 364g / 12.87oz 

Package List: 
1 * Glasses Spring Hinge Assembly Tool