E-Glass:

The normal glassfiber as used isolation. A "soft" and flexible fiber and the heaviest of the reinforcement fiber range.
(Elongation to break (etb): 4.6%)

This is a silica-based fiber, lighter and stiffer than E-Glass. This fiber distinguishes itself by the ability to absorb shock and is mainly used for bullet-proof jackets, rocket sections and several other defense applications. Only Stacey-Sticks are reinforced with these ultramodern fibers.
(etb: 5.1%)

A polyaramid fiber, lighter and stiffer than ballistic fiber. The normal aramid fiber is "Kevlar", Stacey uses "Twaron", a ballistic quality aramid fiber with a higher elasticity.
(etb: [kevlar] 2.6%, [ballistic twaron] 3.6%)

Carbon fibers are extremely stiff and very brittle. Due to its stiffness it is only used in combination with other absorbing materials. It is available in various grades. Graphite-Fiber is a cheaper version and inferior in strength and stiffness to carbon fiber.

One of the ultramodern fibers and the lightest of all (specific gravity less than water). An enormously strong fiber but hard to work with. The stiffness is similar to aramid (Twaron) but the fibers are much stronger. There is up to now no stick known to break reinforced by Stacey with polyethylene fibers. Because of the low weight of the fiber, extreme light but stiff sticks can be produced giving the player a new dimension of feeling for the ball.
(etb: 3.8%)