OK-STORE Zinc Alloy Metal Bat Simbol Mask Shape Dart Keychain Material: Zinc Alloy; Color: Black Dart Size: 3.5 in (8.8cm) X 1.4 in (3.5cm), Weight: 1.6 oz (45g) Be an easy way to consolidate, organize and deploy multiple sets of keys and key chain tools. Can be used on your backpack, luggage, suit. Great and special gift for holiday and birthday.