#240 = item code:304-118 | #320 = item code:304-119
#400 = item code:304-120 | #600 = item code:304-121
#800 = item code:304-122 | #1000 = item code:304-123

It has around 550mm length (450mm for #240) Japanese Aluminum oxide abrasive paper rolled up and it is marked different colors for different grits. Just tear off the paper after used. Save time and enhance working efficiency with high quality abrasive paper. Maximum speed 8,000 RPM.