True Blue vials are accurate to within 0.00005" per inch in all 10 level and plumb working positions. Super-strong anodized I-beam frame with shock-absorbing end plates and strong-holding magnetic edge. Solid block acrylic vials wont break, leak or fog.
ALUMINUMTOP READMAGNETICEM55 SERIESBrand:"TRUE BLUE"3 Vials: 1/Level/2 PlumbLgth In : 48