Pica Refill Sets for Big-Dry are available as either a package of 12 graphite leads or assortment with four of each red, white, and graphite for marking on a wide range of materials including dry, wet, dusty, oily, rough or glossy.

Rectangular leads are 2 x 5 x 150 millimetres and come in a durable and protective plastic case for storage and dispensing.

Note: White and red leads should be protected from temperatures in excess of 30 degrees Celsius.