Concerning this item Details: Pro'sKit is the brand; its number is 8PK-022. The wrench is made of chrome vanadium steel. Hex wrench type Finish: a blackened appearance Dimensions: 0.7, 0.9, 1.3, 1.5, 2, 2.5, 3 mm; 8 * 7 * 0.5 cm Weight of item: 16g Details of the package: Dimensions of the package: 15 * 10.5 * 1 cm/5.9 * 4.1 * 0.4 in P