The Cal Academy insect pinning system employs 5 rows of unit trays per drawer. Constructed of chipboard covered with white paper, trays feature white plastazote foam pinning bottoms press fitted with hot melt adhesive. A size 00 insect pin may be inserted easily without forceps and without bending the pin. The foam does not fracture, remains permanently pliable, is unaffected by moisture, and does not rust pins.
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