Toddler bed guard rail recommendations?

My 16 month old is trying to climb out of her crib! She, however, does not sleep in the same spot all night, so I’m not quite confident enough to put her in a toddler bed yet. Her crib does convert to a toddler bed, but I’m looking for recommendations on a guard rail so she doesn’t fall out of bed.

I found this rail at Walmart for $21, has anyone tried it? It’s Regalo brand, and I’ve been looking for reviews on it, but my biggest question is does it even fit a toddler bed? All of the photos I’ve seen have it attached to twin-king beds!