Lobster Buckle Tool Kit: package includes 6pcs detachable alloy lobster buckles and an iron screwdriver. All buckles are packed in a clear rectangle plastic container box for easy storage. 3 Colors Buckles: the metal buckles are in 3 colors--platinum, light gold and gunmetal, each buckle is about 1.8"(48mm) x 1"(27.5mm) x 0.3"(7.5mm). Container box: 2.9"(7.4cm) x 2.8"(7.2cm) x 0.6"(1.7cm). Easy to Install: a screwdriver is included in the package, just use the screwdriver screw the bar into the other side of the D-Ring, until firmly in place, easy installation and removal. Reliable Material: the D-Rings swivel snap hooks are made of alloy, strong and not easy to break, not easy to deform or get rust, suitable for long-term use, can bring you nice using experiences on crafts making. Wide Applications: ideal for making custom wristlet lanyards, pet ID tags, dog tag, neck lanyards, wristlet lanyards, leather purses, bags, purse, shopping bags, crossbodys, car keys, key rings, and so on.