Braided and waxed hand sewing thread.  This thread is extremely strong which is perfect for  leather projects and repairs. 50m Rolls

20m of artificial sinew (polyester) in various colours. 

Waxed for extended durability. Great for hand stitching. 25 pound breaking strength.

Extra thread for Sewing Awl #1216-00. 12-1/2 yard reel.