the description: 100% brand new and high quality 500g bench scale set comes with 7 weights: 10g, 2x20g, 50g, 2x100g, 1x200g Before use, take the black substrate ring under the balance bowl, put the pointer to zero, and adjust the pointer to the middle line - the scale can also be balanced by adjusting the balance nut on both sides Used for school teaching tool - help children learn the principle of balance and how to use it; Also for lab equipment Material: metal plastic Color: As the pictures show Size chart: Scale (L x W x H): Approx. 25 x 7 x 17cm/9.84 x 2.76 x 6.69in Package includes: 1 set scale table note: Note: Size for manual measurement, there may be 0 to centimeter error, and belongs to this normal phenomenon.
