Rico Plasticover Alto Saxophone Reeds 5 Pack 3.5 Strength Designed to resist moisture and climate changes, Plasticover is ideal for use in outdoor ensembles such as marching band, and for doublers who need to make quick changes between instruments. Whether in moist tropics or in desert heat, Plasticover responds instantly. The durable coating also provides a clear, projecting tone, making Plasticover a favorite with jazz, studio and pop musicians. •Coated with plastic to resist changes in moisture and climate •Coating provides durability and clear tone •Most flexible grade of cane for instant response •French-filed for fast response