Neewer Single Mid-handle Hand Grip with Rod Clamp for 15mm DSLR Camera Rod Rig Support Rail System Black & Blue Perfect for your 15mm shoulder rig system. The top railblock is 60mm center apart. It is strong enough for any 15mm DSLR Shoulder Rig system. This handle grip is easy to hold. Rubber skid proof design. Made from aluminum alloy. Black anodized for durability.