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Original price $ 15.99Original price $ 15.99 - Original price $ 15.99Original price $ 15.99Current price $ 10.95$ 10.95 - $ 10.95Current price $ 10.95经过认证的二手发现40mm折射望远镜
Discovery经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 15.99Original price $ 15.99 - Original price $ 15.99Original price $ 15.99Current price $ 10.95$ 10.95 - $ 10.95Current price $ 10.95Save $ 5.04 -
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Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 24.99$ 24.99 - $ 24.99Current price $ 24.99Certified Pre-Owned Discovery Juno 50mm Telescope with Hard Case
DiscoveryCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 24.99$ 24.99 - $ 24.99Current price $ 24.99Save $ 25.00 -
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Original price $ 27.95Original price $ 27.95 - Original price $ 27.95Original price $ 27.95Current price $ 18.99$ 18.99 - $ 18.99Current price $ 18.99Certified Pre-Owned Discovery 450x Student Microscope
DiscoveryCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 27.95Original price $ 27.95 - Original price $ 27.95Original price $ 27.95Current price $ 18.99$ 18.99 - $ 18.99Current price $ 18.99Save $ 8.96 -
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Original price $ 15.99 - Original price $ 15.99Original price$ 15.99$ 15.99 - $ 15.99Current price $ 15.99发现150X显微镜
Discovery特征 固定的150倍放大倍率显示了较大物体（例如昆虫腿）中的隐藏细节，但仍显示出较小的受试者（如沙子和盐）中的意外结构。 两种照明来源可让您尝试自然光和LED光，以发现哪种类型的效果更好。 使用随附的收集工具以及准备好的和空白的幻灯片开始观察。 电池电量和绳子手提袋鼓励进行调查。 描...
查看完整细节Original price $ 15.99 - Original price $ 15.99Original price$ 15.99$ 15.99 - $ 15.99Current price $ 15.99Sold out
