STL file 9v battery holder・3D print model to download・Cults
Adafruit 9V Battery Case w/ Switch and Barrel Connector - RobotShop
10000pcs 9v Battery Holder With On/off Switch 9 Volt Box - Integrated Circuits - AliExpress
Amazon.com: VWEICYY 2PACK 9V Battery Holder,9V Battery Holder with Switch,9 Volt Battery Holder with Leads,Widely Used in Student Experiments,LED Strips or Other Devices with 9V Batteries (2 Pack) : Tools & Home