Mangobuy 10 Pcs Flat Elastic Tapered Rubber Band for Wooden Slingshot Catapult (Green)

Well constructed. 'pouch' joined nicely to the elastic, not one is twisted in any way so good consistency. Not the most powerful of bands but the consistency is great.

the pouch snapped away from the bands the first pull not tied good

Nothing wrong with the pouch or bands. How long have you shot for? You should pull bands before you sight to check for nicks etc, safety first. Only criticism is that they will be better tied with strips of the bands, not nylon line-that belongs in tackle box. They will last longer also.