Features ​​【Durable to Use】Made of flame-retardant ABS material, durable in use. 【Great Tool】The top cover is equipped with sealing rubber strip, which is dust-proof and waterproof . 【Unique Design】Various types of button switches can be installed inside it. 【Easy to Install】Exquisite appearance design, easy to install and maintenance. 【Suitable Range】It can be mounted directly on a wall or equipment for field control and signal indication. Features: 【Durable to Use】Made of flame-retardant ABS material, durable in use. 【Great Tool】The top cover is equipped with sealing rubber strip, which is dust-proof and waterproof  . 【Unique Design】Various types of button switches can be installed inside it. 【Suitable Range】It can be mounted directly on a wall or equipment for field control and signal indication. Specification: Condition: 100% brand new Material: ABS Weight: 202g/7.1oz Hole Size: 22mm/0.9inch Color: Yellow, White (Optional) Package List: 1* Switch Box Package List