It has many styles for magnetic switch. Round, Cylinder, Rectangle etc. Smart Magnetic Hermetic reed switch is Rectangular style with surface mounted feature. There is strong 3M tape sticker. The wire of magnetic reed switch is standard UL1007 24#. Color can be optional based on quantity and requirement. Normally we suggest white color or black color. 

This is one of the factory's bestsellers which export huge volume every month. There can be options for the key part, the reed switch. Depending on the price, there are many solutions to provide. 

So please contact us for more details when you need better solution.