Aluminium bridge level 1)Size:10"/250MM, 2)With three vials,one horizontal,one vertical 3)Milled bottom surface Aluminium bridge level1)Material:casting aluminium 2)Size:10"/250MM3)With three vials,one horizontal,one vertical,one 45-degree4)Milled bottom surface5)Packing: 1pcs/shrink packing6)Available color:Red,Yellow, Green, Blue etc.7)Delivery Lead time:30-45 days Aluminium bridge level