Stainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces, 5 Sizes) 500 sold2026 National® taper bearing cones feature

National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution

smoothing wrinkles by increasing blood flow

Tri- optic Code 39

cable management and gardening

Stainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces, 5 Sizes) 500 sold2026 National® taper bearing cones featureStainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces, 5 Sizes) Product Features 5 Sizes for you: there are 5 sizes of our stainless steel insect pins, the length is the same, that is about 40 mm, but the diameter is different, respectively 0. 32 mm, 0. 38 mm, 0. 45 mm, 0. 56 mm and 0. 71 mm, for the use of different insects Durable