The Bosch RM 10 Professional Rotating Mount for a wide range of applications. Fitted with very strong magnets for quick and secure mounting on metal surfaces. Its durable design withstands tough environments. Rubber feet provide added stability. There is also a fine adjustment knob for precise line positioning around plumb dots. Suitable for the GCL 2-50 G Professional. Compatible with the DK 10 Professional Ceiling Clip (NOT SUPPLIED) .