Features: Hollow shell- no longer circlip, so that sand nowhere conformal-. Stainless steel axle- & stainless steel ruler spring, prevent rust, durable. ABS- ruler shell-, the shell- is made- of excellent ABS-, durable wear resistance. Accurate measurement, durable, interior decoration measurement distance, height measurement building measurement. Lock & thickened nylon braided- rope, fine detail and a variety of carrying methods, more convenient and easy to use. Specifications: Material: ABS-Shell, Stainless Ruler Tape Type: A: Approx. 5.1x2.9x5cm/2.01x1.47x1.97in B: Approx. 6.9x4.1x6.6cm/2.72x1.61x2.60in C: Approx. 6.9x4.8x6.6cm/2.72x1.89x2.60in D: Approx. 7x4.8x6.8cm/2.76x1.89x2.68in Package Includes: 1x Tape Measure note: Precision- design zero- correction Special heat treatment- of ruler hook Hook loose compensation design, zero- correction measurement After special heat treatment-, the-ruler hook is not easy to deformation-. Loose ruler hook, not product quality problem, please rest assured- to use. Measurement mode- 1 Hook Weight The hook- quantity is 0 scale on the inside of the-ruler hook, and the correct result is obtained from the base point Top Weight The top quantity is retracted with 0 scale base point on the outside of the-ruler hook The length of the club- is the thickness of the-ruler hook, so the measurement results- are correct