Specifications:
Material: Zinc Alloy
Size ( Outer Diameter x Inner Diameter x Thickness ): 
Inner Diameter 0.4": 17x10x3.3mm/0.66"x0.4"x0.13"
Inner Diameter 0.48": 20x12.2x3.6mm/0.8"x0.48"x0.14"
Inner Diameter 0.62": 24x16x4.1mm/0.94"x0.62"x0.16"
Inner Diameter 0.74": 26x19x3.6mm/1"x0.74"x0.14"
Inner Diameter 1": 33x25x4mm/1.3"x1"x0.16"
Inner Diameter 1.2": 40x31x4.2mm/1.6"x1.2"x0.16"
Inner Diameter 1.5": 46x38x4.4mm/1.8"x1.5"x0.17"
Inner Diameter 2": 60x50x5mm/2.4"x2"x0.2"

Package Includes:
15 x Spring O Rings

Nicely Made: 
Zinc alloy die casting, galvanization, simple structure and good adaptability, effectively prevent the deformation and maintain the surface brightness.

Design:
With a spring loaded gate, can attach to a wide range of fixing points quickly and securely.

Strong & Durable:
These o rings are smooth and springy gate lock, and locking firmly when hanging items.

Easy To Use:
The operation is simple, convenient and quick. 
Super strong doesn't pop open.

Wide Application : 
These circular clips can be used for key ring, dog leashes, luggage bag, exercise band, webbing and lanyard, also can be used to extend the strap on your hand bag, shoulder bag or cross body purse.

Tips:
These spring clip round carabiners can not be used for some intense exercise such as mountain climbing or holding your boat to the mooring line although it is strong enough.

Notice:
1.Please allow slight error due to manual measurement. Thanks for your understanding.
2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.