1. Gently remove dust & erase smudges from delicate equipment without leaving residue 2. for cleaning digital SLR, SLR, digital camera lens, binocular lens, and telescope lens, filters, musical instruments, computers, keyboards, etc 3. and elastic, able to blow away the surface dirt easily 4. Metal nozzle with inlet-valve 5. and environmentally friendly and 6. Better for the environment than canned air 7. Light weight, small and handy .
