*This rail system also has built-in Lens Support which is very useful accessory to support any lens.
*The Tripod Mounting plate can also be adjusted at any place on the rails.
*This Rail System can be adjusted both side to side and back and forth.
*The plate comes with both 1/4" and 3/8" camera mounting screws.
*This is a Metal multi-functional 16" Long Standard 15mm Rail System