Metal Spikes and Studs Cone Rivets PU Punk Studs and Spikes Features: Selected quality zinc alloy materials, exquisitely crafted, smooth and round, with a full texture. Screw easy to install, and easy to use. Electroplating process, simple and fashionable, sturdy and Punk 23 available to meet your different need, creating of a kind accessory. Suitable for making collar chains, bags, shoes and hats, pants, hair clips, jackets, wristbands, belts, and various Specifications: Zinc Alloy Type: 23 types optional(refer to pictures to please) Size: as pictures shown Package Includes: 10Pcs Punk Rivets note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.