Features:Size:The for key hook is 2.5cm/0.98 inches in length with 1.6cm/0.6inch inside width D ring, They are small size to fit for small sewing projects.Premium Material:key chain clip hooks are made of high quality metal material, durable and sturdy construction makes them not easy to break, resistant to rust and corrosion, able to retain its color and shape after long for time use.Rotatable Design:These rotating buckles have the flexibility of 360 degrees, you can rotate them in any direction, and don'for t need to worry about jamming problems caused by twisting the direction at will. Durable and sturdy to be applied for long term .Easy to Use:Each clip hook has strong and spring loaded snap gate. To open, pull the trigger and keep it pressed. Release it and the shutter closes automatically.Wide Application:Swivel snap hooks not only can be widely applied in various crafts making, such as making lanyards, keychains, wallets, dog collars, etc. But also suitable for making jewelry, kids' art and other small objects. Specifications:Material: Zinc AlloyColor: SilverDog Buckles:Approx.4.1x2.5cm/1.6x1inchD Rings:Approx.1.6x2.5cm/0.6x1inchSquare Buckles:Approx.1.6x2.5cm/0.6x1inch Note:Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:20 x D-shaped Dog Buckles 20 x D Rings 20 x Square Buckles