The stanley 77 176 dwm30 digital measuring wheel allows for bi directional measurement measures in either direction and automatic conversion of units of measurement it can store up to 8 measurements in memory auto power off after 2 minutes of suspended use as well as a manual power off it has a heavy duty metal folding handle and rubber grip folding wheel mount die cast aluminium wheel wear resistant rubber tread and a folding kick stand 1 77 176 consists of measuring wheel manual and carry bag