Review on CAMVATE 15mm Rod & Shoulder Mount Rig with Rosette Standard Accessory for DSLR - Soft Rubber Grip (Black, M6 Thread, 31.8 mm) by Guillo Tilden

Does exactly what you want it to. I have fairly heavy shoulder gear and I will say the spacing between the handles would be more comfortable for ME if they were a bit wider. When I'm not using a matte box or an external monitor, this is perfect. I use a fairly heavy camera with a 5d iv and a Tamron 24-70 g2 which is a massive lens. Overall for the price it really couldn't be better.