Material: Silica gel Color: Black & Red Natural and environmentally friendly and non-toxic. Perfect for cleaning digital SLR, SLR, digital camera lens, binocular lens, and telescope lens, filters, musical instruments, computers, keyboards, cellphone, etc. inlet valve design prevents back flow from nozzle. Detachable supper stream nozzle. Tripod base design provides free-standing function. The function of this Blower is to gently remove dust & erase smudges from delicate equipment without leaving residue. Excellent way to remove dust off sensitive camera parts without physical contact. Better for the environment than canned . Size: 170mm (H) x 55mm (W) / 6.69 inch (H) x 2.17 inch (W) Package Including: 1* -Shaped Blower Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.