25 John James Saddlers Harness Needles (Leather Sewing, round-pointed needles)

Description

Large, round-pointed needles. Use for all hand stitched leather craft work and harness/saddle repairs.
25 Saddlers Harness needles in paper envelope.
Size 1
55mm length x 1.02mm diameter
Size 2
55mm length x 1.02mm diameter
Size 3
55mm length x 1.02mm diameter
Size 4
48mm length x 0.86mm diameter
Size 18 (1/0)
57mm length x 1.09mm diameter
Size 17 (2/0)
60mm length x 1.42mm diameter
Size 16 (3/0)
62mm length x 1.63mm diameter
So what exactly the difference, if you not sure?
004 (size 4) - the smallest size, suitable for small leather goods including wallets, bags, accessories
001 / 002 /003 (size 1, 2, 3 ) are slightly bigger , but absolutely identical in size, i still have no idea what the difference is - suitable for general leather work, including bags, belts
Size 1/0 is larger again, next size, same aplication
Next up:  size 2/0 and 3/0
Size 3/0 is the largest needle from them all and used mostly for heavy duty application like saddle work.
Hope it helps.