Color 

Thickness 

Material and grit 

Size of roll

Size of sheet 

Red   

9-9.5mm

Aluminum oxide 400#

0.914*120m

4" *8" ,6" *9" , etc.

Green 

1.3-1.4mm

Aluminum oxide 320#

0.914*80m

4" *8" ,6" *9" , etc.

Black 

7-8mm

Aluminum oxide 320#

0.914*120m

4" *8" ,6" *9" , etc.

Blue 

7-8mm

Aluminum oxide 400#

0.914*120m

4" *8" ,6" *9" , etc.

Black turn red

7-8mm

Aluminum oxide 800#

0.914*120m

4" *8" ,6" *9" , etc.

Black turn gray

7-8mm

Silicon carbide 1000#

0.914*120m

4" *8" ,6" *9" , etc.

Gray black 

6.5-7mm

Aluminum oxide 320#

0.82*120m

4" *8"  60pcs/roll