Plastic Patches NPdrums There are 2 products.

Plastic Drumhead Model

•  Bordoneros
•  Hydraulic Blue
•  Hydraulic Line Black
•  Hydraulic Line Transparent
•  Imperium
•  Smooth White

Patch Measures

•  10" 25.4 cm Timbale
•  12" 30.5 cm Timbale
•  13" 33.0 cm Timbale
•  14" 35.6 cm Timbale
•  15" 38.1 cm Timbale
•  18" 45.7 cm Bass Drum
•  20" 50.8 cm Bass Drum
•  22" 55.9 cm Bass Drum
•  24" 60.9 cm Bass Drum
•  26" 66.0 cm Bass Drum

Thickness of patch

•  190 microns