Features 1、Made of high quality material, not easy to break, not easy to damage and durable. 2、Simple to use, easy to operate, and this simple balance is designed for experiment. 3、It can improve your child's hands-on ability, thinking ability and interest in physics. 4、Suitable for use in middle and high school laboratories to help students do experiments. 5、Comes with weights and balance rider to make the balance easier to use. Specification Condition: 100% Brand New Item Type: Simple Balance Material: Plastic Range: 200g/1g Structure: 1 x Base, 1 x Measure Bar, 2 x Tray Rack Ring, 2 x Tray Bucket, 1 x Balance Rider, 16 x 10g Weight, 8 x 5g Weight Product Size: Approx. 32 x 6.5 x 10.8 cm / 12.6 x 2.6 x 4.3 in Weight: Approx. 443g / 15.6oz Package List 1 x Balance (with Base and Tray Bucket) 1 x User Manual 1 x Balance Rider 24 x Weight