supply of set of three different ranges digital outside micrometers as follows. 1) digital outside micrometer range: 0 - 150 mm, least count: 0.001mm, qty/set. = 01 no.2) digital outside micrometer range: 150 - 300 mm , set of three different ranges digital outside micrometers as follows. 1) digital outside microm eter range: 0 - 150 mm, least count: 0.001mm, qty/set. = 01 no.2) digital outside micrometer range: 150 - 300 mm, least count: 0.001mm, qty/set. = 01 no.3) digital outside micrometer range: 300 - 400 mm, le ast count: 0.001mm, qty/set. = 01 no. features:-1) wide measuring range with interchangeable with anvils .2) measuring face of the spindle is carbide tipped.3) ip 65 water /dust protection.4) equipped with ratchet stop for constant measuring force. 5) oil resistant material used for all plastic parts.6) extended battery life of approximately 2.4 years. make m/s. mitutoyo make or its equivalent in insize/ baker/ forbes [ warranty period: 30 months after the date of delivery ] ]