Specially design accessories for getting the best finish possible. The lapping fluid was specially designed over 35 years ago for the engineering industry and this original formula still out performs all others. The Mirror Paste and leather strops have been made specifically to work with each another and are all manufactured in the UK. The leather strops are double sided, Fine and Coarse, to get a superb edge when used with the Mirror Paste. The 30gms of 8000 to 10000 grit mirror finishing paste is in a screw top jar. It is an incredibly fine paste that hones and polishes knives, chisels and wood turning tools to a mirror finish and a razor like edge.