Stainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces,Size 2) Size 2 500 Number of Items:500 Great all around cutting fluid

Great all around cutting fluid for use with many different metals including mild steel

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and zinc alloy

UV light source or direct sunlight

Stainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces,Size 2) Size 2 500 Number of Items:500 Great all around cutting fluidStainless Steel Insect Pins Specimen Pins Entomology Pins Dissection and Butterfly Collections Needle for School Lab Entomology Dissection Butterfly Collectors (500 Pieces,Size 2) Read more Almost invisible when using Quality stainless steel material, durable and reusable The head is easy to use Equipped with plastic vials, convenient for your storing Read more Product Features Product size: the length of our stainless steel insect pins is about 40