Wiha 26160 8-Piece PicoFinish Precision Screwdriver Set - Slotted & Phillips Head - Ideal for Electronics Repair, Eyeglasses & Small Device Maintenance

They're not too big or small. The handles are made for adults in the US, unlike so many that are more child sized. I admit to my choice being aided by the brand name and colors but these also met my other requirements first and the others were questionable at best.