Fostering Wild Mallards ducklings- need leg band suggestions

[WannaBeHillBilly]

I wondered about that. I think my husband will help but I guess I better ask him first. I do have the spiral type and I have had trouble getting them on so I imagine these would be even harder. Not very expensive though which is good if they don't work out for me.

I bought these at eBay, even cheaper than the spiral-bands from Strombergs:
https://www.ebay.com/itm/100-4-Inch-Long-18-Pound-Nylon-Cable-Ties-10-COLORS-Zip-Tie-Ty-Wrap-MADE-USA/391399064721?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
And 10 colors is enough for at least 20 birds. (left leg/right leg…)