"rather small size" is correct and usable in written English.
You can use it in a sentence when you are referring to something that has a smaller size than average. For example, "This apartment has a rather small size but it is cozy."
Flagella and cilia become ineffective at rather small size, and amoeboid movement is limited to the size a single cell can attain.
It is the highly coupled interface of carbon frameworks and MoS2 components that resulted in the formation of patched and few-layer MoS2 nanosheets with rather small size and thus ensured the abundance of exposed active edge sites.
The state of the structural disorder in PST relaxor thin films is characterized by the high density of π stacking faults and the rather small size (<10 nm) of the cation ordering domains, and is therefore markedly distinct from the state of the disorder in bulk relaxor PST.
One thing that I noticed was the rather small size of the pockets on the interior organizer.
All frequencies in the M_COP corpus were normalized per 1000 words due to its rather small size.
The reduction in the value of saturation magnetization could be attributed to the rather small size of magnetite and GO in the hybrids[20, 21].
The perovskite nanocrystals with rather small sizes and controlled morphology, as reported by the abovementioned works, are commonly grown in the solution (wet chemistry) [11].
First, we find that the dependency of the socio-topical metrics on the group size confirms previous observations about the effective size of social communities (also known as Dunbar's Number), peaking around rather small sizes and being limited by a cap of 100-200 members.
Many species were rather small, the size of a sparrow, but some attained larger body sizes.
Besides having a rather small sample size and a short follow-up time, they were often characterized by vague and subjective assessment of disease activity and treatment response.
However, the results should be interpreted with some caution due to the rather small sample size.
