Ento Sphinx, Stainless Steel, Gold-Headed Insect Pins

From the Czech Republic.

Stainless Steel, available in all sizes from 000 to 7 (and including 6A). With gold-coloured heads.

Size 6A pins are unique to Ento Sphinx. These pins are the same diameter as the regular size 6, but they are longer than the usual 6 at 45 mm.

Stainless steel pins are better for humid environments; this is a higher quality pin (which also means these are more expensive pins - no surprise!).

Gold-headed pins are the most common type of pins. The heads are visible but not "in your face" visible. These are excellent pins for a wide variety of specimens.

100 pins/package.

Size 000: diameter 0.25mm, length ca. 39mm

Size 00: diameter 0.30mm, length ca. 39mm

Size 0: diameter 0.35mm, length ca. 39mm

Size 1:  diameter 0.40mm, length ca. 39mm

Size 2:  diameter 0.45mm, length ca. 39mm

Size 3:  diameter 0.50mm, length ca. 39mm

Size 4:  diameter 0.55mm, length ca. 39mm

Size 5:  diameter 0.60mm, length ca. 39mm

Size 6:  diameter 0.65mm, length ca. 39 mm

Size 6A:  diameter 0.65mm, length ca. 45mm

Size 7:  diameter 0.70mm, length ca. 52 mm

Size 7 pins are sometimes referred to as "railway spikes" because of their rather impressive size. They can be slightly more expensive than the little guys, depending on the supplier.
A word of caution: some display and storage cases may not accommodate the extra length of these "spikes". Most notably, size 7 pins are too long to fit California Academy drawers.