170pcs Watch Crown Metal With Storage Box Flat Round Head Accurate Spring Bar

--\n\nFeature: \n 1. Watch Repair Accessory: For professional watch repairing, replacing old or broken watch crowns. Easy to install, elaborate and precise design make better working efficiency.\n2. 170pcs: Can replace broken one at any time, enough to use for a long time. Two colored parts are designed to repair gold and silver watch crowns.\n3. Different Size: Can replace watch crowns or spring bars many times. 10 styles of crowns and 8 sizes of spring bars, meeting different watch demands.\n4. With Storage Box: Storage in separate compartments, you can classify watch crowns according to your working habits, more convenient and fast in use.\n5. Metal: Watch Crowns are sturdy and durable, has long service life, not easy to damage or rust. Suitable for most types of watches. \n\nSpecification: \n\nItem Type: Watch Crowns\nMaterial: Metal\nWeight: 60 g / 2.1 oz(approx.)\nStorage Box Size: Approx. 10.8 x 6.5 x 1.6cm / 4.3 x 2.6 x 0.6in\nProduct Specifications:\nGold Head: 3.5mm, 4.0mm-