Model Number:k79r1zonfs Package Dimensions:12 x 8 x 2 cm 1. Regular good-quality materials, sturdy and durable, drop-proof and corrosion-resistant, can be used for a long time with confidence 2. Can be used to pin on the collar to anti-failure, allowing you to wear some beautiful and open clothes with confidence 3. Removable design, installation is very simple, can be repeatedly disassembled and reused 4. The installation operation is very simple, allowing novices to complete within a few seconds 5. Small in size, can be carried well and used at any time, very convenient Specification: Item Type: Collar Button Pins Specification: 30 Main Material: Plastic (composed of complex materials) How to Use: 1. Pinch the small iron pieces on both sides of the base and remove the base 2. Pass the buckle into the neckline 3. Align the screws of the cap with the holes of the base and insert 4. Installation is complete Package List: 30 x Collar Button Pins Regular good-quality materials, sturdy and durable, drop-proof and corrosion-resistant, can be used for a long time with confidence Can be used to pin on the collar to anti-failure, allowing you to wear some beautiful and open clothes with confidence Removable design, installation is very simple, can be repeatedly disassembled and reused Small in size, can be carried well and used at any time, very convenient The installation operation is very simple, allowing novices to complete within a few seconds Regular good-quality materials, sturdy and durable, drop-proof and corrosion-resistant, can be used for a long time with confidence Can be used to pin on the collar to anti-failure, allowing you to wear some beautiful and open clothes with confidence Removable design, installation is very simple, can be repeatedly disassembled and reused Small in size, can be carried well and used at any time, very convenient The installation operation is very simple, allowing novices to complete within a few seconds