BT25E - Fisco Big T Tape Measure 1" Wide x 25' Long World's most accurate tape measure. Meets Class I accuracy. Patented snap-on belt hook holds tape securely and prevents it from accidentally dislodging. Blade is marked every 1/8" & 1/16", numbered every inch & foot, plus 16" stud center. Rubber over-molds at key stress points & internal shock absorbers protect the tape during use. 3-rivet clear-view and self-zeroing end hook for full view of increments and extra blade durability.