These cards are essential if you're using Basics of Biblical Hebrew. There really is no other way of putting it.
The cards have the word written in large, clear Hebrew letters on one side. The opposite side notes: the definition (and other useful notes, such as gender), the chapter it occurs in Basics of Biblical Hebrew, chapters it appears in other common Hebrew grammars, number of times it occurs in the Old Testament, and a number for the card in the overall set. The cards are quite rugged too, and have survived many a trip in my pocket when out and about.
The big benefit with these, is how much time they save you in making your own flashcards. Unlike Greek, Hebrew letters are difficult to write in a way that makes them appear similarly to that of the actual text. Your Hebrew handwriting will look significantly different.
I've also been using some computer software to learn Hebrew vocab (Anki)but I often fall back on these cards when I want to cram, and when I'm out and about.
These are a no-brainer. Buy them. They will massively help your Hebrew.