This Shoulder Mount allows you to use your Cinevate DSLR Rig interchangeably between the shoulder stock, or in a full counter-balanced shoulder rig.This kit ships with offset mount kit, shoulder rig, pad and rear facing 15mm rails block (for rods mounted counter-balance). It is fully adjustable for offset distance left or right, providing approximately six inches of vertical adjustment too. This allows precise tuning of the rig position if you're using an eyepiece.Please note: Cinevate's DSLR Counterweight is sold separately.