The Advent ASR Precision Steel Rule is made from stainless steel with permanent etched graduations. One side of the rule has metric markings and the other side has imperial markings.
EC Class 1 Accurate.
The Advent Black Edition Tape has a double-sided, nylon coated black blade with metric and imperial graduations. Fitted with a true zero end hook for accurate measurements. Contained within a compact, ergonomically designed case.
Accuracy: EC Class II