Light-weight D-shaped Carabiners / Snap Links with Anodized Aluminum Finish - Set of 10 Light-weight Material: Aluminum alloy with anodized aluminum finish - now with Screw Locks! Ideal for hanging up pet toys, keys, ropes, strings, tents and bungees;SAFE FOR BIRDS / No Zinc/Lead Double security due to the screw lock option - great solution for escape artist birds! Quantity: includes 10 - Size (Approx) : 2 inches (L) x 1 inch (width/widest point) x 0.16 inch. Useful around the house or for outdoor activities, such as camping, fishing, hiking or traveling. C