![MST B4 Blue Rib #4](http://cornellstudiosupply.com/cdn/shop/products/284_600x600.jpg?v=1671773103)
MST B4 Blue Rib #4
Original price
$9.00
-
Original price
$9.00
Original price
$9.00
$9.00
-
$9.00
Current price
$9.00
Polymer flexible rib. Colors indicate hardness. Red is the softest followed by yellow which is medium-soft. Next is green which is medium-hard and blue being the stiffest of all the ribs. All ribs are durible and do not easily crack or burr.