Kids Physical Education Tool: Concave Lens,

Caros amigos brasileiros, seja bem-vindo! Os produtos em nossa loja são econômicos e de boa qualidade. Você pode nos consultar diretamente com qualquer dúvida. A resposta do nosso serviço ao cliente é rápida e profissional. O link da nossa loja é: https://lista.mercadolivre.com.br/_CustId_1646009146?item_id=MLB4705025214&category_id=MLB46290&seller_id=1646009146&cli ent=recoview-selleritems&recos_listing=true#origin=vip&component=sellerData&typeSeller=classic Physics Tool for Kids: Concave Lens, Convex Lens and Prism Description: Physical Optical Experiment Tool for Kids: Concave Lens, Convex Lens and Prism Great experiment toy to help children learn reflection and refraction of light and cultivate children's interest in physics and science. It was used for physical laboratory optics and learning, also for school teaching. Tool for refraction, reflection, action, etc. Material: ABS PLASTIC Color: As pictures shown. Specification : Height: about 13cm/5.12in Lens diameter: about 5cm/1.97inch Package Included: 1 Set an optical experiment tool Note: Choking hazard: small parts not for children under 3 years old. Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Also please allow a slight difference in size that may be caused by manual measurement. Q: About availability? A: The products we demonstrate are available. Q: About the shipping cost and delivery time? A: All products are with free shipping, you don't need to pay the shipping cost or taxes. They are shipped from China, it takes about 15 to 25 days to arrive and deliver. Q: Do you offer invoice? A: We offer digital billing, you can send us a message after placing the order if you need it. However, this invoice does not work as a tax invoice, it does not have a company seal.