This measuring set contains four high quality instruments-a 0-25 x 0.01 MM micrometer caliper, a 90 degree knife edge square, a 150 x 0.05 MM vernier caliper, and a 150 MM steel ruler. All of these are housed in a sturdy plastic storage case. Additional Info: Precision measuring set Package Size(L x W x H): 12 X 4 X 2 (IN) Categories: Measurement , Kits HTS Code: 9017.30.4000 UNSPSC: 4.1e+007 Country Of Origin: CHINA