Specification: Condition: Brand New Material: Aluminum, Rubber Color: Shown as Picture Test Range: 0-20% Accuracy: 1% Length: approx. 14cm/5.51in Weight: approx.224g/7.9oz Package List: 1 * Refractometer 1 x Pipette 1 x Screwdriver 1 x Instruction Note: 1. Please use this instrument according to the instruction, be careful when using. Do not loose any connection part arbitrarily, prevent violently shock, impact and falling off. 2. Use and soft cloth to wipe the instrument, do not put into water directly to and avoid scratch of surface. 3. Storage the instrument at dry and non-corrosive place. 4. Storage the part well. 5. The adjustment range of eyepiece and hand wheel is within 2cm left or right. 6. Please allow 1-3cm error due to manual measurement, thanks for your understanding. 7. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object, please take the real one as standard.