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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
The external timer supports accurate time measurements with features like Start
Durable Construction: Made of high-quality materials
1 x short tube with 90° bend (60mm x 60mm)
Purplish Soil
Using the geometric principle
Lenses Cylindrical The external timer supports accurateSet of 4 Lenses. Premium Quality: Cylindrical Lens is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us.
