Plastic Stackable Sifter Set, 8", 5-Pack Neulog_Accessories Epoxy-coated steel wire rack with

Epoxy-coated steel wire rack with a 40-tube capacity for 18-20 mm test tubes

this pot holder secures specimens during gravitropism and centrifugal growth-response experiments

Pack of 50 assorted one-hole rubber stoppers with 5mm hole provides acid and alkali resistance for laboratory vessel sealing with tubing pass-through

Six-piece 3-inch optical lens set combining three double-convex and three double-concave glass lenses at 200mm

Pairing a hinged-mirror ray box with lenses

Plastic Stackable Sifter Set, 8", 5-Pack Neulog_Accessories Epoxy-coated steel wire rack withGraduated through five different hole sizes from 9 16 to 1 4 inch, this stackable plastic sieve pack progressively sorts earth science and soil study samples by particle size.