hourglass white icons round glossy buttons black background

navigate by keyword : black blue buttons chrome clock colors computer conceptional countdown cursor cyan dark elapsed elapsing falling flow glass glossy gray green hour hourglass icons invert leak measure measurement metal minute mouse orange period pictograms progress purple red reflections round sand shiny silver sphere spherical steel symbols time timer vector white yellow

Hourglass white icons in round glossy buttons with steel frames on black background. The buttons are in two different styles and eight colors