High quality Chrome Vanadium steel ends with tough flexible spring shafts. For use where a traditional solid extension bar will not fit. Suitable for all hand ratchet applications.2pc Flexible Extension Adaptor Set 1/4Sq x 254mm & 3/8Sq x 305mm• High quality Chrome Vanadium steel ends with tough flexible spring shafts.• For use where a traditional solid extension bar will not fit.• Suitable for all hand ratchet applications.• Drive x Length: 1/4Sq x 254mm 3/8Sq x 305mm.• Lifetime guarantee*.• Model No. AK7342Model No: AK7342:Brand: Premier:Drive: 1/4PTDSEAAK7342