I have a set, lent them to a student at a rainy HT; though they did great in terms of grip, they are a little too narrow for her hands. They are not all rubber or all web, they are web with rubber threaded throughout - and have stops.
I’ll attach a pic. They are basically cheap Indian leather, and I’ve seen them sold in a lot of places, but it’s hard to find them in a slightly wider width. If anyone has any suggestions, TIA!