Cartoon Ultrasonic Sensor Mounting Bracket For HC-SR04 :
Specifically designed for the HC-SR04 Ultrasonic Sensor Module, with this Ultrasonic Sensor Mounting Bracket you can attach the Hc-SR04 module to your application such as small robots or DIY projects very quickly and conveniently.
This mounting bracket is made from good quality Acrylic. It has the mounting holes of diameter 3.8mm.