The phrase "small bundle" typically refers to something compact or tightly wrapped, usually referring to a small package or collection of items. Full definition
So, with an open mind, I would buy small bundles, usually experimenting with whatever was cheapest. (mindbodygreen.com)
Having an installed base of safely operating reactors should make it easier to win approval for selling the units individually or in smaller bundles later on, Reyes contends. (discovermagazine.com)