Sufficient quantity: the package contains 100 pieces of clasps and 10 pieces of locking tools, full-size thin profiles are provided to meet all needs. Durable and exquisite: the locking backs are made of plated copper, making them completely rust-proof and extremely durable. Size information: the pin holder diameter is 6 mm/ 0.24 inch, the height is 5 mm/ 0.2 inch, and the screw length is 3 mm/ 0.12 inch, enough to lock the pins firmly in place; The locking tool is 4.5 cm/ 1.8 inch. Keep your pin in place: no need to worry about pins falling off or getting lost, the locking pin keepers will secure pins on leather, vest, jacket, cap, hat, work uniform, lanyard, bags, card and virtually any clothing. Easy to attach: just put a pin keeper on the back of your favorite pin, then use the locking tool to secure it in place, the whole process is quick and easy, and a blessing for those who love to wear pins. About shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time depends on circumstances. If you have any questions, please do not hesitate to contact us. During the shopping process, if you have any questions, please do not hesitate to contact us, we will reply to you within 45816 hours, wish you a happy shopping. Thank you for your cooperation and we will make you satisfied.