Cov noog spikes yog muaj 304 stainless hlau hlau thiab UV resistant polycarbonate puag, uas yog ruaj rau ntau tshaj 10 xyoo.
Cov noog spikes yog dav siv hauv: Ledges, parapets, paib, kav dej, chimneys, teeb, thiab lwm yam.
Nws yog ib qho yooj yim rau nruab rau ntawm lub tsev nto nrog kua nplaum los yog ntsia hlau.