Curved, 3-square single point needle.
CS Osborne #502 – 3-1/2″ – 16 gauge [heavy]
Curved needles are measured up and around the bend.
3-Square point [or diamond point] needles are used for leather & vinyl.
Save money buy by the dozen.
Individually – $8.57 / each
Pack of 12 – $62.34 / dozen