Each package includes 1 set: 1 lock cylinder and 5 keys. Material: the cylinder and keys are made of high quality copper (solid brass) Size: 1-1/4"(32mm in total length) please refer to the Size Chart. **Warm tips: Please carefully compare the dimensions shown in the product images before purchase and confirm whether they meet your requirements. Finish: Satin Brass Keys: with 5 dimple keys and key thickness is 2.5mm Fits most rim and mortise locks on the market and can be used as a replacement for wooden doors, aluminum doors, storm doors, and patio sliding doors. It is widely used in homes, offices, warehouses, garages, balconies, and other locations. We guarantee a high-quality product for your satisfaction. If you have any questions or issues, please feel free to contact us — we are always ready to help.