This is a Metal multi-functional Standard Rail System that can be used for mounting HD DSLRs and various accessories like Follow focus/Mattebox * This Rail System can be adjusted both side to side and back and forth. There are two camera height riser adapters support the plate. * The plate comes with both 1/4" and 3/8" camera mounting screws. Hence the large variety of cameras can be used with this Rail System. * The Tripod Mounting plate can also be adjusted at any place on the rails. * Rails length: 250mm; Rails dia: 15mm; Rails center-to-center distance : 60mm; Camera height riser adapters length : 85mm; * Thickness of height riser adapters: 8mm; Lens support length: 65mm; * These height riser helps in adjusting the height of the camera as required. * Tripod mounting plate length : 80mm; Tripod mounting plate thickness : 20mm; Screws thread : 1/4 & 3/8 * This rail system also has built-in Lens Support which is very useful accessory to support any lens.