Product name: air

Dimensions: 30cm
packing: OPP/bag
material: PS material
high-grade transparent PS material, no toxic odors, scale is clear, precise, bright, quality assurance, and studied painting and drawing geometrical figures a good helper.
Note matters:
1: this measure used PS material making, please away from high temperature, so as not to caused dangerous and the effects the measure of precision
2: due to this products with sharp part, using Shi should caution, so as not to designated hurt
3: this products only suitable general measurement and the learning uses, not application Yu other precise measurement uses
4: age following children as needed using, to in parents accompanied below can for