The use of PC for primary school students is widely spread. This condition leads the PC and its accessories manufacturer to produce various types of device, e.g. mouse, keyboard and flash drive. The present study aimed to evaluate the match/mismatch between the mouse dimensions and the students' hand dimensions. Four types of mice easily found in the market were included in the analyses. A hundred and seventy-four students of the primary school participated in the measurement. Three hand dimensions relevant to the mouse dimensions were selected to measure. Findings of the study show that the dimensions of the mice available in the market are incompatible with the hand dimension of the primary school students. Only a small percentage of the students is possible to use the mouse easily and comfortably. It should be emphasized that the suitable mouse for the primary school students is a crucial need.
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