Features STONY ergonomic screw driver set the only handle adjusting to the individual hand, stony ergonomic the impact proof core is coated with elastic, scratch resistant elastomer containing cells of highly flexible plastics. Sizes / Flat 4,0 x 100 Sizes / Flat 5,5 x 125 Sizes / Flat 6,5 x 150 Sizes / Philips PH 1 x 80 Sizes / Philips PH 2 x 100