This Hydrometer is solid and sturdy, which can withstand use. Features the wood, plastic, glass material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This Meter will make the measuring salt water easier and smoother. Features -Color:Transparent -Material:Wood, glass, plastic -Size:19.50X1.50X1.50cm/7.66X0.59X0.59in -Size:25.00X6.50X6.00cm/9.82X2.55X2.36in -Size:30.00X12.50X6.50cm/11.79X4.91X2.55in -Measuring cylinder capacity: 100ml -The Hydrometer allows for precise and reliable measurement of , density, and saltiness levels in marine aquaculture settings. -The Water Salimeter comes with a practical wooden box and a compact plastic scaled cylinder, making it easy to store and transport. -The Salt Water Gravimeter is made of glass materials that ensure durability and resistance to potential damage in marine environments. -Undergoes thorough testing and control procedures to ensure accurate and dependable measurement results. -It has a reasonable design, which can well improve the performance and easily meet your needs. Package list: 2 x meter 2 x measuring cylinder 2 x wooden box