Thank you for visiting the page! Ships with careful packing from Japan. Explanation Link Arm, of course, we have set four I-form and L-form arms that can be used in a wide range of bearings and structural materials, respectively. The I-shaped arm has 3mm bores at 5mm intervals in the center, allowing easy cutting with nippers or cutters. The L type arm is also available as a structural material that has 3mm bores at 5mm intervals to create a surface perpendicular to the bearing material or the base.