ALTTIMERY Mini Solid Brass Screw Lock Key Ring Portable Durable Keychain EDC Kits Hanging Ring Made of solid brass Size: 4.5cm H x 6.5cm W / 1.7inch x 2.5inch High precision screw lock, which means it can hold tightly Comfortably holds up to 20 keys Mini size, easy to carry Can be hang on backpacks to take along with your EDC belongings