Instruct: Classify the given Amazon review into its appropriate rating category
Query: A bit pricey?

Well made, perfect for the job I have. My application is very low speed, these couplings will never be stressed in any way. The only things that mattered to me were: 1) the correct internal diameter for the shaft, 2) good screws that I can drive easily and that "bite" well, and 3) ability to correctly align the shafts using the screws. No complaints about any of the above. The only reason I rate these couplings 4/5 stars is that, for the price, I'd expect to get at least twice as many. As a comparison, some electronic components I buy for my hobbies are a marvel of science, engineering and manufacturing, and they cost less than a buck.