Features： * 100% brand new and high quality * Made of high quality material, durable and safe * Easy to install and reliable to use *Spring central axle shutter pins or retractable shutter pins, these pins are spring retractable and are typically used to reinstall shutters that have come out without separating the shutter panels *The spring is loaded and it retracts itself flush with the inside of the shutter frame Specifications： Material: plastic + cold rolled steel Color: black, white Suitable for opening 7cm and 8cm holes Size: as shown Package Contents（optional）: 10*Spring Pins Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and safe Easy to install and reliable to use Spring central axle shutter pins or retractable shutter pins, these pins are spring retractable and are typically used to reinstall shutters that have come out without separating the shutter panels The spring is loaded and it retracts itself flush with the inside of the shutter frame Suitable for opening 7cm and 8cm holes