This is a 100g reel of heavy weight green
synthetic thread, approximately 1mm thick.
It is rot-proof and is extremely strong, so it's ideal for leathergoods that will be out in all weathers!
This chunky thread is best stitched with No 2 needles. It's heavily waxed and very smooth, so it's lovely to work with. It's hard to judge how much thread is on the roll, but it's at least a couple of hundred metres.
To give you sense of scale, the reel is around 4" (10cm) tall.