Features tough plastic gear housing5 digit counter with reset button85 durometer rubber wheels for durability and traction aluminium handle two piece retractable 1 77 175 small measuring wheel technical specification working range 999999 metres wheel diameter 100mm working environment mainly indoor smooth floor use working accuracy 2 typically units of measurement metres tenths of a metre build standard diecast wheels hd rubber tyres for durability tough counter moulding for st