Fiberglass Rock Wall Panel Materials: fiberglass, resin & fillers, etc. Thick (mm): 0. ... , paddle shafts, bows and arrows, crossbows, golf shafts, slide guides, boat, kayak2) Tool: umbrella shaft, umbrella rod, curtain rod, fence post ... spacer sticks, cable support trays, switch actuators Highstrength Smooth Fiberglass Rock Wall Panel