This is the MRS heavy duty leg kit #A-4192-0020 (125 mm). It is Ø60 mm × 350 mm long with one per kit.
Where heavier rack systems or longer styli configurations are used, such as multiple SCP80s or RCP TC-2s, the MRS system can be upgraded by using optional heavy-duty legs that are 60 mm (2.36 in) in diameter and 350 mm (13.78 in) long. These legs are mounted to the CMM table beneath the standard legs and feet.
￼￼￼￼NOTE: The MRS heavy-duty leg kit comprises one heavy-duty leg assembly. Two kits are required for each MRS install.