The listing includes Z-Shape Offset Riser Rod Clamp Rail Block + Shoulder Pad + Rod.
Originally designed for shoulder pad, It rises and offsets the position. It's rising height is 30mm.
According to friends' suggestion, the z-shape clamp's depth is updated to 20mm, it works better with rods because of bigger contact area between the clamp and rods.
It features 60mm rods distance, it fits 15mm rod support / rail system.
