Curved, 3-square single point needle.
CS Osborne #502-1/2 – 8″ – 15 gauge [light]
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 – $14.80/each
Pack of 12 – $107.60/dozen